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Finding the Fourth Proportional to 56,125.95, 84,160.90 and 18,672.97

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Solution

The fourth proportional to 56,125.95, 84,160.90 and 18,672.97 is: 28,000.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,125.95 : 84,160.90 = 18,672.97 : x
  2. Step 2: Convert to fraction form
    56,125.95/84,160.90 = 18,672.97/x
  3. Step 3: Cross multiply
    56,125.95x = 84,160.90 × 18,672.97
  4. Step 4: Simplify right side
    56,125.95x = 1,571,533,960.87
  5. Step 5: Solve for x
    x = 1,571,533,960.87/56,125.95
  6. Step 6: Final answer
    x = 28,000.13

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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.