Home / 83,214.16-124,656.09-38,779.72

Finding the Fourth Proportional to 83,214.16, 124,656.09 and 38,779.72

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Solution

The fourth proportional to 83,214.16, 124,656.09 and 38,779.72 is: 58,092.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,214.16 : 124,656.09 = 38,779.72 : x
  2. Step 2: Convert to fraction form
    83,214.16/124,656.09 = 38,779.72/x
  3. Step 3: Cross multiply
    83,214.16x = 124,656.09 × 38,779.72
  4. Step 4: Simplify right side
    83,214.16x = 4,834,128,266.49
  5. Step 5: Solve for x
    x = 4,834,128,266.49/83,214.16
  6. Step 6: Final answer
    x = 58,092.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.