Home / 84,548.19-126,824.33-28,390.13

Finding the Fourth Proportional to 84,548.19, 126,824.33 and 28,390.13

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Solution

The fourth proportional to 84,548.19, 126,824.33 and 28,390.13 is: 42,585.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,548.19 : 126,824.33 = 28,390.13 : x
  2. Step 2: Convert to fraction form
    84,548.19/126,824.33 = 28,390.13/x
  3. Step 3: Cross multiply
    84,548.19x = 126,824.33 × 28,390.13
  4. Step 4: Simplify right side
    84,548.19x = 3,600,559,215.86
  5. Step 5: Solve for x
    x = 3,600,559,215.86/84,548.19
  6. Step 6: Final answer
    x = 42,585.88

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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.