Home / 71,434.02-107,143.52-29,318.55

Finding the Fourth Proportional to 71,434.02, 107,143.52 and 29,318.55

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Solution

The fourth proportional to 71,434.02, 107,143.52 and 29,318.55 is: 43,974.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,434.02 : 107,143.52 = 29,318.55 : x
  2. Step 2: Convert to fraction form
    71,434.02/107,143.52 = 29,318.55/x
  3. Step 3: Cross multiply
    71,434.02x = 107,143.52 × 29,318.55
  4. Step 4: Simplify right side
    71,434.02x = 3,141,292,903.49
  5. Step 5: Solve for x
    x = 3,141,292,903.49/71,434.02
  6. Step 6: Final answer
    x = 43,974.74

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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.