Home / 87,155.16-130,732.72-60,911.16

Finding the Fourth Proportional to 87,155.16, 130,732.72 and 60,911.16

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Solution

The fourth proportional to 87,155.16, 130,732.72 and 60,911.16 is: 91,366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,155.16 : 130,732.72 = 60,911.16 : x
  2. Step 2: Convert to fraction form
    87,155.16/130,732.72 = 60,911.16/x
  3. Step 3: Cross multiply
    87,155.16x = 130,732.72 × 60,911.16
  4. Step 4: Simplify right side
    87,155.16x = 7,963,081,625.16
  5. Step 5: Solve for x
    x = 7,963,081,625.16/87,155.16
  6. Step 6: Final answer
    x = 91,366.73

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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.