Home / 42,310.16-63,348.44-31,890.32

Finding the Fourth Proportional to 42,310.16, 63,348.44 and 31,890.32

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Solution

The fourth proportional to 42,310.16, 63,348.44 and 31,890.32 is: 47,747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,310.16 : 63,348.44 = 31,890.32 : x
  2. Step 2: Convert to fraction form
    42,310.16/63,348.44 = 31,890.32/x
  3. Step 3: Cross multiply
    42,310.16x = 63,348.44 × 31,890.32
  4. Step 4: Simplify right side
    42,310.16x = 2,020,202,023.10
  5. Step 5: Solve for x
    x = 2,020,202,023.10/42,310.16
  6. Step 6: Final answer
    x = 47,747.44

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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.