Home / 84,417.29-126,534.80-54,856.34

Finding the Fourth Proportional to 84,417.29, 126,534.80 and 54,856.34

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Solution

The fourth proportional to 84,417.29, 126,534.80 and 54,856.34 is: 82,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,417.29 : 126,534.80 = 54,856.34 : x
  2. Step 2: Convert to fraction form
    84,417.29/126,534.80 = 54,856.34/x
  3. Step 3: Cross multiply
    84,417.29x = 126,534.80 × 54,856.34
  4. Step 4: Simplify right side
    84,417.29x = 6,941,235,515.10
  5. Step 5: Solve for x
    x = 6,941,235,515.10/84,417.29
  6. Step 6: Final answer
    x = 82,225.29

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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.