Home / 84,557.76-126,851.21-28,403.27

Finding the Fourth Proportional to 84,557.76, 126,851.21 and 28,403.27

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Solution

The fourth proportional to 84,557.76, 126,851.21 and 28,403.27 is: 42,609.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,557.76 : 126,851.21 = 28,403.27 : x
  2. Step 2: Convert to fraction form
    84,557.76/126,851.21 = 28,403.27/x
  3. Step 3: Cross multiply
    84,557.76x = 126,851.21 × 28,403.27
  4. Step 4: Simplify right side
    84,557.76x = 3,602,988,391.18
  5. Step 5: Solve for x
    x = 3,602,988,391.18/84,557.76
  6. Step 6: Final answer
    x = 42,609.79

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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.