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Finding the Fourth Proportional to 85,165.80, 117,531.47 and 48,873.89

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Solution

The fourth proportional to 85,165.80, 117,531.47 and 48,873.89 is: 67,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,165.80 : 117,531.47 = 48,873.89 : x
  2. Step 2: Convert to fraction form
    85,165.80/117,531.47 = 48,873.89/x
  3. Step 3: Cross multiply
    85,165.80x = 117,531.47 × 48,873.89
  4. Step 4: Simplify right side
    85,165.80x = 5,744,219,395.93
  5. Step 5: Solve for x
    x = 5,744,219,395.93/85,165.80
  6. Step 6: Final answer
    x = 67,447.49

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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.