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Finding the Fourth Proportional to 83,548.60, 125,322.90 and 53,999.80

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Solution

The fourth proportional to 83,548.60, 125,322.90 and 53,999.80 is: 80,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,548.60 : 125,322.90 = 53,999.80 : x
  2. Step 2: Convert to fraction form
    83,548.60/125,322.90 = 53,999.80/x
  3. Step 3: Cross multiply
    83,548.60x = 125,322.90 × 53,999.80
  4. Step 4: Simplify right side
    83,548.60x = 6,767,411,535.42
  5. Step 5: Solve for x
    x = 6,767,411,535.42/83,548.60
  6. Step 6: Final answer
    x = 80,999.70

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1.5x scale

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.