Home / 71,484.20-98,660.03-39,663.35

Finding the Fourth Proportional to 71,484.20, 98,660.03 and 39,663.35

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Solution

The fourth proportional to 71,484.20, 98,660.03 and 39,663.35 is: 54,741.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,484.20 : 98,660.03 = 39,663.35 : x
  2. Step 2: Convert to fraction form
    71,484.20/98,660.03 = 39,663.35/x
  3. Step 3: Cross multiply
    71,484.20x = 98,660.03 × 39,663.35
  4. Step 4: Simplify right side
    71,484.20x = 3,913,187,102.58
  5. Step 5: Solve for x
    x = 3,913,187,102.58/71,484.20
  6. Step 6: Final answer
    x = 54,741.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.