Home / 45,997.32-68,851.42-31,681.78

Finding the Fourth Proportional to 45,997.32, 68,851.42 and 31,681.78

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Solution

The fourth proportional to 45,997.32, 68,851.42 and 31,681.78 is: 47,423.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,997.32 : 68,851.42 = 31,681.78 : x
  2. Step 2: Convert to fraction form
    45,997.32/68,851.42 = 31,681.78/x
  3. Step 3: Cross multiply
    45,997.32x = 68,851.42 × 31,681.78
  4. Step 4: Simplify right side
    45,997.32x = 2,181,335,677.08
  5. Step 5: Solve for x
    x = 2,181,335,677.08/45,997.32
  6. Step 6: Final answer
    x = 47,423.11

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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.