Home / 81,260.32-121,657.12-60,057.76

Finding the Fourth Proportional to 81,260.32, 121,657.12 and 60,057.76

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Solution

The fourth proportional to 81,260.32, 121,657.12 and 60,057.76 is: 89,914.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,260.32 : 121,657.12 = 60,057.76 : x
  2. Step 2: Convert to fraction form
    81,260.32/121,657.12 = 60,057.76/x
  3. Step 3: Cross multiply
    81,260.32x = 121,657.12 × 60,057.76
  4. Step 4: Simplify right side
    81,260.32x = 7,306,454,115.25
  5. Step 5: Solve for x
    x = 7,306,454,115.25/81,260.32
  6. Step 6: Final answer
    x = 89,914.17

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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.