Home / 42,126.17-63,189.25-28,938.56

Finding the Fourth Proportional to 42,126.17, 63,189.25 and 28,938.56

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Solution

The fourth proportional to 42,126.17, 63,189.25 and 28,938.56 is: 43,407.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,126.17 : 63,189.25 = 28,938.56 : x
  2. Step 2: Convert to fraction form
    42,126.17/63,189.25 = 28,938.56/x
  3. Step 3: Cross multiply
    42,126.17x = 63,189.25 × 28,938.56
  4. Step 4: Simplify right side
    42,126.17x = 1,828,605,514.19
  5. Step 5: Solve for x
    x = 1,828,605,514.19/42,126.17
  6. Step 6: Final answer
    x = 43,407.83

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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.