Home / 72,589,856.32-100,175,155.20-39,551,666.56

Finding the Fourth Proportional to 72,589,856.32, 100,175,155.20 and 39,551,666.56

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Solution

The fourth proportional to 72,589,856.32, 100,175,155.20 and 39,551,666.56 is: 54,581,928.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,589,856.32 : 100,175,155.20 = 39,551,666.56 : x
  2. Step 2: Convert to fraction form
    72,589,856.32/100,175,155.20 = 39,551,666.56/x
  3. Step 3: Cross multiply
    72,589,856.32x = 100,175,155.20 × 39,551,666.56
  4. Step 4: Simplify right side
    72,589,856.32x = 3,962,094,336,066,650.50
  5. Step 5: Solve for x
    x = 3,962,094,336,066,650.50/72,589,856.32
  6. Step 6: Final answer
    x = 54,581,928.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.