Home / 42,425.64-63,578.28-31,244.64

Finding the Fourth Proportional to 42,425.64, 63,578.28 and 31,244.64

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Solution

The fourth proportional to 42,425.64, 63,578.28 and 31,244.64 is: 46,822.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,425.64 : 63,578.28 = 31,244.64 : x
  2. Step 2: Convert to fraction form
    42,425.64/63,578.28 = 31,244.64/x
  3. Step 3: Cross multiply
    42,425.64x = 63,578.28 × 31,244.64
  4. Step 4: Simplify right side
    42,425.64x = 1,986,480,470.42
  5. Step 5: Solve for x
    x = 1,986,480,470.42/42,425.64
  6. Step 6: Final answer
    x = 46,822.64

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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.