Home / 72,818.66-109,254.31-25,440.75

Finding the Fourth Proportional to 72,818.66, 109,254.31 and 25,440.75

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Solution

The fourth proportional to 72,818.66, 109,254.31 and 25,440.75 is: 38,170.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,818.66 : 109,254.31 = 25,440.75 : x
  2. Step 2: Convert to fraction form
    72,818.66/109,254.31 = 25,440.75/x
  3. Step 3: Cross multiply
    72,818.66x = 109,254.31 × 25,440.75
  4. Step 4: Simplify right side
    72,818.66x = 2,779,511,523.53
  5. Step 5: Solve for x
    x = 2,779,511,523.53/72,818.66
  6. Step 6: Final answer
    x = 38,170.32

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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.