Home / 85,335.13-127,930.40-35,384.05

Finding the Fourth Proportional to 85,335.13, 127,930.40 and 35,384.05

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Solution

The fourth proportional to 85,335.13, 127,930.40 and 35,384.05 is: 53,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,335.13 : 127,930.40 = 35,384.05 : x
  2. Step 2: Convert to fraction form
    85,335.13/127,930.40 = 35,384.05/x
  3. Step 3: Cross multiply
    85,335.13x = 127,930.40 × 35,384.05
  4. Step 4: Simplify right side
    85,335.13x = 4,526,695,493.20
  5. Step 5: Solve for x
    x = 4,526,695,493.20/85,335.13
  6. Step 6: Final answer
    x = 53,046.10

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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.