Home / 87,875.29-121,270.12-53,902.52

Finding the Fourth Proportional to 87,875.29, 121,270.12 and 53,902.52

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Solution

The fourth proportional to 87,875.29, 121,270.12 and 53,902.52 is: 74,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,875.29 : 121,270.12 = 53,902.52 : x
  2. Step 2: Convert to fraction form
    87,875.29/121,270.12 = 53,902.52/x
  3. Step 3: Cross multiply
    87,875.29x = 121,270.12 × 53,902.52
  4. Step 4: Simplify right side
    87,875.29x = 6,536,764,521.82
  5. Step 5: Solve for x
    x = 6,536,764,521.82/87,875.29
  6. Step 6: Final answer
    x = 74,386.83

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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.