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Finding the Fourth Proportional to 45,235.98, 67,860.12 and 15,645.87

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Solution

The fourth proportional to 45,235.98, 67,860.12 and 15,645.87 is: 23,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,235.98 : 67,860.12 = 15,645.87 : x
  2. Step 2: Convert to fraction form
    45,235.98/67,860.12 = 15,645.87/x
  3. Step 3: Cross multiply
    45,235.98x = 67,860.12 × 15,645.87
  4. Step 4: Simplify right side
    45,235.98x = 1,061,730,615.70
  5. Step 5: Solve for x
    x = 1,061,730,615.70/45,235.98
  6. Step 6: Final answer
    x = 23,470.93

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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.