Home / 87,331.04-130,980.72-39,935.36

Finding the Fourth Proportional to 87,331.04, 130,980.72 and 39,935.36

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Solution

The fourth proportional to 87,331.04, 130,980.72 and 39,935.36 is: 59,895.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,331.04 : 130,980.72 = 39,935.36 : x
  2. Step 2: Convert to fraction form
    87,331.04/130,980.72 = 39,935.36/x
  3. Step 3: Cross multiply
    87,331.04x = 130,980.72 × 39,935.36
  4. Step 4: Simplify right side
    87,331.04x = 5,230,762,206.26
  5. Step 5: Solve for x
    x = 5,230,762,206.26/87,331.04
  6. Step 6: Final answer
    x = 59,895.80

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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.