Home / 71,837.64-99,109.14-71,726.88

Finding the Fourth Proportional to 71,837.64, 99,109.14 and 71,726.88

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Solution

The fourth proportional to 71,837.64, 99,109.14 and 71,726.88 is: 98,956.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,837.64 : 99,109.14 = 71,726.88 : x
  2. Step 2: Convert to fraction form
    71,837.64/99,109.14 = 71,726.88/x
  3. Step 3: Cross multiply
    71,837.64x = 99,109.14 × 71,726.88
  4. Step 4: Simplify right side
    71,837.64x = 7,108,789,391.68
  5. Step 5: Solve for x
    x = 7,108,789,391.68/71,837.64
  6. Step 6: Final answer
    x = 98,956.33

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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.