Home / 55,488.76-76,565.55-31,615.90

Finding the Fourth Proportional to 55,488.76, 76,565.55 and 31,615.90

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Solution

The fourth proportional to 55,488.76, 76,565.55 and 31,615.90 is: 43,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,488.76 : 76,565.55 = 31,615.90 : x
  2. Step 2: Convert to fraction form
    55,488.76/76,565.55 = 31,615.90/x
  3. Step 3: Cross multiply
    55,488.76x = 76,565.55 × 31,615.90
  4. Step 4: Simplify right side
    55,488.76x = 2,420,688,772.25
  5. Step 5: Solve for x
    x = 2,420,688,772.25/55,488.76
  6. Step 6: Final answer
    x = 43,624.85

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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.