Home / 83,810.72-125,633.02-39,357.90

Finding the Fourth Proportional to 83,810.72, 125,633.02 and 39,357.90

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Solution

The fourth proportional to 83,810.72, 125,633.02 and 39,357.90 is: 58,997.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,810.72 : 125,633.02 = 39,357.90 : x
  2. Step 2: Convert to fraction form
    83,810.72/125,633.02 = 39,357.90/x
  3. Step 3: Cross multiply
    83,810.72x = 125,633.02 × 39,357.90
  4. Step 4: Simplify right side
    83,810.72x = 4,944,651,837.86
  5. Step 5: Solve for x
    x = 4,944,651,837.86/83,810.72
  6. Step 6: Final answer
    x = 58,997.84

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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.