Home / 56,385.28-77,808.32-31,232.96

Finding the Fourth Proportional to 56,385.28, 77,808.32 and 31,232.96

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Solution

The fourth proportional to 56,385.28, 77,808.32 and 31,232.96 is: 43,099.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,385.28 : 77,808.32 = 31,232.96 : x
  2. Step 2: Convert to fraction form
    56,385.28/77,808.32 = 31,232.96/x
  3. Step 3: Cross multiply
    56,385.28x = 77,808.32 × 31,232.96
  4. Step 4: Simplify right side
    56,385.28x = 2,430,184,146.23
  5. Step 5: Solve for x
    x = 2,430,184,146.23/56,385.28
  6. Step 6: Final answer
    x = 43,099.62

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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.