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Finding the Fourth Proportional to 72,024.40, 107,944.80 and 40,434.40

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Solution

The fourth proportional to 72,024.40, 107,944.80 and 40,434.40 is: 60,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,024.40 : 107,944.80 = 40,434.40 : x
  2. Step 2: Convert to fraction form
    72,024.40/107,944.80 = 40,434.40/x
  3. Step 3: Cross multiply
    72,024.40x = 107,944.80 × 40,434.40
  4. Step 4: Simplify right side
    72,024.40x = 4,364,683,221.12
  5. Step 5: Solve for x
    x = 4,364,683,221.12/72,024.40
  6. Step 6: Final answer
    x = 60,600.06

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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.