Home / 43,375.20-65,062.80-31,565.40

Finding the Fourth Proportional to 43,375.20, 65,062.80 and 31,565.40

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Solution

The fourth proportional to 43,375.20, 65,062.80 and 31,565.40 is: 47,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,375.20 : 65,062.80 = 31,565.40 : x
  2. Step 2: Convert to fraction form
    43,375.20/65,062.80 = 31,565.40/x
  3. Step 3: Cross multiply
    43,375.20x = 65,062.80 × 31,565.40
  4. Step 4: Simplify right side
    43,375.20x = 2,053,733,307.12
  5. Step 5: Solve for x
    x = 2,053,733,307.12/43,375.20
  6. Step 6: Final answer
    x = 47,348.10

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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.