Home / 42,255.40-63,383.10-38,367.40

Finding the Fourth Proportional to 42,255.40, 63,383.10 and 38,367.40

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Solution

The fourth proportional to 42,255.40, 63,383.10 and 38,367.40 is: 57,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,255.40 : 63,383.10 = 38,367.40 : x
  2. Step 2: Convert to fraction form
    42,255.40/63,383.10 = 38,367.40/x
  3. Step 3: Cross multiply
    42,255.40x = 63,383.10 × 38,367.40
  4. Step 4: Simplify right side
    42,255.40x = 2,431,844,750.94
  5. Step 5: Solve for x
    x = 2,431,844,750.94/42,255.40
  6. Step 6: Final answer
    x = 57,551.10

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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.