Home / 97,395.52-134,431.52-57,115.20

Finding the Fourth Proportional to 97,395.52, 134,431.52 and 57,115.20

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Solution

The fourth proportional to 97,395.52, 134,431.52 and 57,115.20 is: 78,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,395.52 : 134,431.52 = 57,115.20 : x
  2. Step 2: Convert to fraction form
    97,395.52/134,431.52 = 57,115.20/x
  3. Step 3: Cross multiply
    97,395.52x = 134,431.52 × 57,115.20
  4. Step 4: Simplify right side
    97,395.52x = 7,678,083,151.10
  5. Step 5: Solve for x
    x = 7,678,083,151.10/97,395.52
  6. Step 6: Final answer
    x = 78,834.05

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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.