Home / 45,372.61-67,925.83-31,816.78

Finding the Fourth Proportional to 45,372.61, 67,925.83 and 31,816.78

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Solution

The fourth proportional to 45,372.61, 67,925.83 and 31,816.78 is: 47,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,372.61 : 67,925.83 = 31,816.78 : x
  2. Step 2: Convert to fraction form
    45,372.61/67,925.83 = 31,816.78/x
  3. Step 3: Cross multiply
    45,372.61x = 67,925.83 × 31,816.78
  4. Step 4: Simplify right side
    45,372.61x = 2,161,181,189.43
  5. Step 5: Solve for x
    x = 2,161,181,189.43/45,372.61
  6. Step 6: Final answer
    x = 47,631.85

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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.