Home / 42,630.20-63,945.30-38,547.80

Finding the Fourth Proportional to 42,630.20, 63,945.30 and 38,547.80

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Solution

The fourth proportional to 42,630.20, 63,945.30 and 38,547.80 is: 57,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,630.20 : 63,945.30 = 38,547.80 : x
  2. Step 2: Convert to fraction form
    42,630.20/63,945.30 = 38,547.80/x
  3. Step 3: Cross multiply
    42,630.20x = 63,945.30 × 38,547.80
  4. Step 4: Simplify right side
    42,630.20x = 2,464,950,635.34
  5. Step 5: Solve for x
    x = 2,464,950,635.34/42,630.20
  6. Step 6: Final answer
    x = 57,821.70

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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.