Home / 99,253.16-136,969.92-53,931.52

Finding the Fourth Proportional to 99,253.16, 136,969.92 and 53,931.52

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Solution

The fourth proportional to 99,253.16, 136,969.92 and 53,931.52 is: 74,425.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,253.16 : 136,969.92 = 53,931.52 : x
  2. Step 2: Convert to fraction form
    99,253.16/136,969.92 = 53,931.52/x
  3. Step 3: Cross multiply
    99,253.16x = 136,969.92 × 53,931.52
  4. Step 4: Simplify right side
    99,253.16x = 7,386,995,979.88
  5. Step 5: Solve for x
    x = 7,386,995,979.88/99,253.16
  6. Step 6: Final answer
    x = 74,425.80

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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.