Home / 85,068.60-127,586.04-42,937.87

Finding the Fourth Proportional to 85,068.60, 127,586.04 and 42,937.87

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Solution

The fourth proportional to 85,068.60, 127,586.04 and 42,937.87 is: 64,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,068.60 : 127,586.04 = 42,937.87 : x
  2. Step 2: Convert to fraction form
    85,068.60/127,586.04 = 42,937.87/x
  3. Step 3: Cross multiply
    85,068.60x = 127,586.04 × 42,937.87
  4. Step 4: Simplify right side
    85,068.60x = 5,478,272,799.33
  5. Step 5: Solve for x
    x = 5,478,272,799.33/85,068.60
  6. Step 6: Final answer
    x = 64,398.30

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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.