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Finding the Fourth Proportional to 68,445, 94,454.10 and 38,637

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Solution

The fourth proportional to 68,445, 94,454.10 and 38,637 is: 53,319.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,445 : 94,454.10 = 38,637 : x
  2. Step 2: Convert to fraction form
    68,445/94,454.10 = 38,637/x
  3. Step 3: Cross multiply
    68,445x = 94,454.10 × 38,637
  4. Step 4: Simplify right side
    68,445x = 3,649,423,061.70
  5. Step 5: Solve for x
    x = 3,649,423,061.70/68,445
  6. Step 6: Final answer
    x = 53,319.06

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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.