Home / 84,461.40-126,728.82-52,943.68

Finding the Fourth Proportional to 84,461.40, 126,728.82 and 52,943.68

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Solution

The fourth proportional to 84,461.40, 126,728.82 and 52,943.68 is: 79,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,461.40 : 126,728.82 = 52,943.68 : x
  2. Step 2: Convert to fraction form
    84,461.40/126,728.82 = 52,943.68/x
  3. Step 3: Cross multiply
    84,461.40x = 126,728.82 × 52,943.68
  4. Step 4: Simplify right side
    84,461.40x = 6,709,490,092.86
  5. Step 5: Solve for x
    x = 6,709,490,092.86/84,461.40
  6. Step 6: Final answer
    x = 79,438.54

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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.