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Finding the Fourth Proportional to 72,599.52, 100,197.96 and 42,393.84

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Solution

The fourth proportional to 72,599.52, 100,197.96 and 42,393.84 is: 58,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,599.52 : 100,197.96 = 42,393.84 : x
  2. Step 2: Convert to fraction form
    72,599.52/100,197.96 = 42,393.84/x
  3. Step 3: Cross multiply
    72,599.52x = 100,197.96 × 42,393.84
  4. Step 4: Simplify right side
    72,599.52x = 4,247,776,284.57
  5. Step 5: Solve for x
    x = 4,247,776,284.57/72,599.52
  6. Step 6: Final answer
    x = 58,509.70

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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.