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Finding the Fourth Proportional to 90,249, 124,543.78 and 52,548.52

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Solution

The fourth proportional to 90,249, 124,543.78 and 52,548.52 is: 72,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,249 : 124,543.78 = 52,548.52 : x
  2. Step 2: Convert to fraction form
    90,249/124,543.78 = 52,548.52/x
  3. Step 3: Cross multiply
    90,249x = 124,543.78 × 52,548.52
  4. Step 4: Simplify right side
    90,249x = 6,544,591,314.21
  5. Step 5: Solve for x
    x = 6,544,591,314.21/90,249
  6. Step 6: Final answer
    x = 72,517.05

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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.