Home / 58,542.90-80,789.10-31,685.40

Finding the Fourth Proportional to 58,542.90, 80,789.10 and 31,685.40

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Solution

The fourth proportional to 58,542.90, 80,789.10 and 31,685.40 is: 43,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,542.90 : 80,789.10 = 31,685.40 : x
  2. Step 2: Convert to fraction form
    58,542.90/80,789.10 = 31,685.40/x
  3. Step 3: Cross multiply
    58,542.90x = 80,789.10 × 31,685.40
  4. Step 4: Simplify right side
    58,542.90x = 2,559,834,949.14
  5. Step 5: Solve for x
    x = 2,559,834,949.14/58,542.90
  6. Step 6: Final answer
    x = 43,725.80

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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.