Home / 60,139.08-90,206.78-28,571.85

Finding the Fourth Proportional to 60,139.08, 90,206.78 and 28,571.85

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Solution

The fourth proportional to 60,139.08, 90,206.78 and 28,571.85 is: 42,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,139.08 : 90,206.78 = 28,571.85 : x
  2. Step 2: Convert to fraction form
    60,139.08/90,206.78 = 28,571.85/x
  3. Step 3: Cross multiply
    60,139.08x = 90,206.78 × 28,571.85
  4. Step 4: Simplify right side
    60,139.08x = 2,577,374,444.28
  5. Step 5: Solve for x
    x = 2,577,374,444.28/60,139.08
  6. Step 6: Final answer
    x = 42,856.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.