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Finding the Fourth Proportional to 78,001.70, 107,633.09 and 44,008.21

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Solution

The fourth proportional to 78,001.70, 107,633.09 and 44,008.21 is: 60,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,001.70 : 107,633.09 = 44,008.21 : x
  2. Step 2: Convert to fraction form
    78,001.70/107,633.09 = 44,008.21/x
  3. Step 3: Cross multiply
    78,001.70x = 107,633.09 × 44,008.21
  4. Step 4: Simplify right side
    78,001.70x = 4,736,738,869.46
  5. Step 5: Solve for x
    x = 4,736,738,869.46/78,001.70
  6. Step 6: Final answer
    x = 60,726.10

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1.5x scale

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.