Home / 84,154.40-126,126.35-42,046.27

Finding the Fourth Proportional to 84,154.40, 126,126.35 and 42,046.27

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Solution

The fourth proportional to 84,154.40, 126,126.35 and 42,046.27 is: 63,016.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,154.40 : 126,126.35 = 42,046.27 : x
  2. Step 2: Convert to fraction form
    84,154.40/126,126.35 = 42,046.27/x
  3. Step 3: Cross multiply
    84,154.40x = 126,126.35 × 42,046.27
  4. Step 4: Simplify right side
    84,154.40x = 5,303,142,040.67
  5. Step 5: Solve for x
    x = 5,303,142,040.67/84,154.40
  6. Step 6: Final answer
    x = 63,016.81

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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.