Home / 97,389.52-134,399.88-57,129.04

Finding the Fourth Proportional to 97,389.52, 134,399.88 and 57,129.04

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Solution

The fourth proportional to 97,389.52, 134,399.88 and 57,129.04 is: 78,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,389.52 : 134,399.88 = 57,129.04 : x
  2. Step 2: Convert to fraction form
    97,389.52/134,399.88 = 57,129.04/x
  3. Step 3: Cross multiply
    97,389.52x = 134,399.88 × 57,129.04
  4. Step 4: Simplify right side
    97,389.52x = 7,678,136,120.52
  5. Step 5: Solve for x
    x = 7,678,136,120.52/97,389.52
  6. Step 6: Final answer
    x = 78,839.45

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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.