Home / 61,202.18-91,729.45-31,603.88

Finding the Fourth Proportional to 61,202.18, 91,729.45 and 31,603.88

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Solution

The fourth proportional to 61,202.18, 91,729.45 and 31,603.88 is: 47,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,202.18 : 91,729.45 = 31,603.88 : x
  2. Step 2: Convert to fraction form
    61,202.18/91,729.45 = 31,603.88/x
  3. Step 3: Cross multiply
    61,202.18x = 91,729.45 × 31,603.88
  4. Step 4: Simplify right side
    61,202.18x = 2,899,006,530.27
  5. Step 5: Solve for x
    x = 2,899,006,530.27/61,202.18
  6. Step 6: Final answer
    x = 47,367.70

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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.