Home / 91,665.64-137,402.46-38,388.04

Finding the Fourth Proportional to 91,665.64, 137,402.46 and 38,388.04

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Solution

The fourth proportional to 91,665.64, 137,402.46 and 38,388.04 is: 57,541.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,665.64 : 137,402.46 = 38,388.04 : x
  2. Step 2: Convert to fraction form
    91,665.64/137,402.46 = 38,388.04/x
  3. Step 3: Cross multiply
    91,665.64x = 137,402.46 × 38,388.04
  4. Step 4: Simplify right side
    91,665.64x = 5,274,611,130.58
  5. Step 5: Solve for x
    x = 5,274,611,130.58/91,665.64
  6. Step 6: Final answer
    x = 57,541.86

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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.