Home / 99,025.28-136,635.36-60,780.32

Finding the Fourth Proportional to 99,025.28, 136,635.36 and 60,780.32

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Solution

The fourth proportional to 99,025.28, 136,635.36 and 60,780.32 is: 83,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,025.28 : 136,635.36 = 60,780.32 : x
  2. Step 2: Convert to fraction form
    99,025.28/136,635.36 = 60,780.32/x
  3. Step 3: Cross multiply
    99,025.28x = 136,635.36 × 60,780.32
  4. Step 4: Simplify right side
    99,025.28x = 8,304,740,904.12
  5. Step 5: Solve for x
    x = 8,304,740,904.12/99,025.28
  6. Step 6: Final answer
    x = 83,864.86

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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.