Home / 91,582.98-137,324-28,385.58

Finding the Fourth Proportional to 91,582.98, 137,324 and 28,385.58

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Solution

The fourth proportional to 91,582.98, 137,324 and 28,385.58 is: 42,562.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,582.98 : 137,324 = 28,385.58 : x
  2. Step 2: Convert to fraction form
    91,582.98/137,324 = 28,385.58/x
  3. Step 3: Cross multiply
    91,582.98x = 137,324 × 28,385.58
  4. Step 4: Simplify right side
    91,582.98x = 3,898,021,387.92
  5. Step 5: Solve for x
    x = 3,898,021,387.92/91,582.98
  6. Step 6: Final answer
    x = 42,562.73

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1.5x scale

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.