Home / 65,788.01-90,781.97-38,925.85

Finding the Fourth Proportional to 65,788.01, 90,781.97 and 38,925.85

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Solution

The fourth proportional to 65,788.01, 90,781.97 and 38,925.85 is: 53,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,788.01 : 90,781.97 = 38,925.85 : x
  2. Step 2: Convert to fraction form
    65,788.01/90,781.97 = 38,925.85/x
  3. Step 3: Cross multiply
    65,788.01x = 90,781.97 × 38,925.85
  4. Step 4: Simplify right side
    65,788.01x = 3,533,765,095.56
  5. Step 5: Solve for x
    x = 3,533,765,095.56/65,788.01
  6. Step 6: Final answer
    x = 53,714.42

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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.