Home / 84,592.76-126,876.38-28,430.60

Finding the Fourth Proportional to 84,592.76, 126,876.38 and 28,430.60

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Solution

The fourth proportional to 84,592.76, 126,876.38 and 28,430.60 is: 42,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,592.76 : 126,876.38 = 28,430.60 : x
  2. Step 2: Convert to fraction form
    84,592.76/126,876.38 = 28,430.60/x
  3. Step 3: Cross multiply
    84,592.76x = 126,876.38 × 28,430.60
  4. Step 4: Simplify right side
    84,592.76x = 3,607,170,832.69
  5. Step 5: Solve for x
    x = 3,607,170,832.69/84,592.76
  6. Step 6: Final answer
    x = 42,641.60

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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.