Home / 54,348.32-75,000.65-31,688.30

Finding the Fourth Proportional to 54,348.32, 75,000.65 and 31,688.30

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Solution

The fourth proportional to 54,348.32, 75,000.65 and 31,688.30 is: 43,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,348.32 : 75,000.65 = 31,688.30 : x
  2. Step 2: Convert to fraction form
    54,348.32/75,000.65 = 31,688.30/x
  3. Step 3: Cross multiply
    54,348.32x = 75,000.65 × 31,688.30
  4. Step 4: Simplify right side
    54,348.32x = 2,376,642,563.95
  5. Step 5: Solve for x
    x = 2,376,642,563.95/54,348.32
  6. Step 6: Final answer
    x = 43,729.83

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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.