Home / 47,885.12-71,679.76-31,209.28

Finding the Fourth Proportional to 47,885.12, 71,679.76 and 31,209.28

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Solution

The fourth proportional to 47,885.12, 71,679.76 and 31,209.28 is: 46,717.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,885.12 : 71,679.76 = 31,209.28 : x
  2. Step 2: Convert to fraction form
    47,885.12/71,679.76 = 31,209.28/x
  3. Step 3: Cross multiply
    47,885.12x = 71,679.76 × 31,209.28
  4. Step 4: Simplify right side
    47,885.12x = 2,237,073,700.17
  5. Step 5: Solve for x
    x = 2,237,073,700.17/47,885.12
  6. Step 6: Final answer
    x = 46,717.51

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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.