Home / 84,089.64-126,071.28-39,691.12

Finding the Fourth Proportional to 84,089.64, 126,071.28 and 39,691.12

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Solution

The fourth proportional to 84,089.64, 126,071.28 and 39,691.12 is: 59,506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,089.64 : 126,071.28 = 39,691.12 : x
  2. Step 2: Convert to fraction form
    84,089.64/126,071.28 = 39,691.12/x
  3. Step 3: Cross multiply
    84,089.64x = 126,071.28 × 39,691.12
  4. Step 4: Simplify right side
    84,089.64x = 5,003,910,303.03
  5. Step 5: Solve for x
    x = 5,003,910,303.03/84,089.64
  6. Step 6: Final answer
    x = 59,506.86

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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.