Home / 84,674.18-126,995.07-42,542.60

Finding the Fourth Proportional to 84,674.18, 126,995.07 and 42,542.60

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Solution

The fourth proportional to 84,674.18, 126,995.07 and 42,542.60 is: 63,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,674.18 : 126,995.07 = 42,542.60 : x
  2. Step 2: Convert to fraction form
    84,674.18/126,995.07 = 42,542.60/x
  3. Step 3: Cross multiply
    84,674.18x = 126,995.07 × 42,542.60
  4. Step 4: Simplify right side
    84,674.18x = 5,402,699,989.54
  5. Step 5: Solve for x
    x = 5,402,699,989.54/84,674.18
  6. Step 6: Final answer
    x = 63,805.75

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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.