Home / 80,565.04-111,182.91-55,124.76

Finding the Fourth Proportional to 80,565.04, 111,182.91 and 55,124.76

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Solution

The fourth proportional to 80,565.04, 111,182.91 and 55,124.76 is: 76,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,565.04 : 111,182.91 = 55,124.76 : x
  2. Step 2: Convert to fraction form
    80,565.04/111,182.91 = 55,124.76/x
  3. Step 3: Cross multiply
    80,565.04x = 111,182.91 × 55,124.76
  4. Step 4: Simplify right side
    80,565.04x = 6,128,931,750.15
  5. Step 5: Solve for x
    x = 6,128,931,750.15/80,565.04
  6. Step 6: Final answer
    x = 76,074.33

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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.