Home / 80,248.32-120,369.60-30,326.40

Finding the Fourth Proportional to 80,248.32, 120,369.60 and 30,326.40

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Solution

The fourth proportional to 80,248.32, 120,369.60 and 30,326.40 is: 45,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,248.32 : 120,369.60 = 30,326.40 : x
  2. Step 2: Convert to fraction form
    80,248.32/120,369.60 = 30,326.40/x
  3. Step 3: Cross multiply
    80,248.32x = 120,369.60 × 30,326.40
  4. Step 4: Simplify right side
    80,248.32x = 3,650,376,637.44
  5. Step 5: Solve for x
    x = 3,650,376,637.44/80,248.32
  6. Step 6: Final answer
    x = 45,488.51

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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.