Home / 83,828.59-115,681.36-45,587.68

Finding the Fourth Proportional to 83,828.59, 115,681.36 and 45,587.68

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Solution

The fourth proportional to 83,828.59, 115,681.36 and 45,587.68 is: 62,909.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,828.59 : 115,681.36 = 45,587.68 : x
  2. Step 2: Convert to fraction form
    83,828.59/115,681.36 = 45,587.68/x
  3. Step 3: Cross multiply
    83,828.59x = 115,681.36 × 45,587.68
  4. Step 4: Simplify right side
    83,828.59x = 5,273,644,821.64
  5. Step 5: Solve for x
    x = 5,273,644,821.64/83,828.59
  6. Step 6: Final answer
    x = 62,909.86

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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.