Home / 81,587.25-112,590.28-45,780.59

Finding the Fourth Proportional to 81,587.25, 112,590.28 and 45,780.59

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Solution

The fourth proportional to 81,587.25, 112,590.28 and 45,780.59 is: 63,177.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,587.25 : 112,590.28 = 45,780.59 : x
  2. Step 2: Convert to fraction form
    81,587.25/112,590.28 = 45,780.59/x
  3. Step 3: Cross multiply
    81,587.25x = 112,590.28 × 45,780.59
  4. Step 4: Simplify right side
    81,587.25x = 5,154,449,446.67
  5. Step 5: Solve for x
    x = 5,154,449,446.67/81,587.25
  6. Step 6: Final answer
    x = 63,177.14

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1.5x scale

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.