Home / 80,714.96-121,072.55-38,585.14

Finding the Fourth Proportional to 80,714.96, 121,072.55 and 38,585.14

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Solution

The fourth proportional to 80,714.96, 121,072.55 and 38,585.14 is: 57,877.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,714.96 : 121,072.55 = 38,585.14 : x
  2. Step 2: Convert to fraction form
    80,714.96/121,072.55 = 38,585.14/x
  3. Step 3: Cross multiply
    80,714.96x = 121,072.55 × 38,585.14
  4. Step 4: Simplify right side
    80,714.96x = 4,671,601,291.91
  5. Step 5: Solve for x
    x = 4,671,601,291.91/80,714.96
  6. Step 6: Final answer
    x = 57,877.76

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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.