Home / 61,123.20-84,357.36-58,465.86

Finding the Fourth Proportional to 61,123.20, 84,357.36 and 58,465.86

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Solution

The fourth proportional to 61,123.20, 84,357.36 and 58,465.86 is: 80,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,123.20 : 84,357.36 = 58,465.86 : x
  2. Step 2: Convert to fraction form
    61,123.20/84,357.36 = 58,465.86/x
  3. Step 3: Cross multiply
    61,123.20x = 84,357.36 × 58,465.86
  4. Step 4: Simplify right side
    61,123.20x = 4,932,025,599.73
  5. Step 5: Solve for x
    x = 4,932,025,599.73/61,123.20
  6. Step 6: Final answer
    x = 80,689.91

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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.