Home / 80,417.32-120,626.76-30,484

Finding the Fourth Proportional to 80,417.32, 120,626.76 and 30,484

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Solution

The fourth proportional to 80,417.32, 120,626.76 and 30,484 is: 45,726.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,417.32 : 120,626.76 = 30,484 : x
  2. Step 2: Convert to fraction form
    80,417.32/120,626.76 = 30,484/x
  3. Step 3: Cross multiply
    80,417.32x = 120,626.76 × 30,484
  4. Step 4: Simplify right side
    80,417.32x = 3,677,186,151.84
  5. Step 5: Solve for x
    x = 3,677,186,151.84/80,417.32
  6. Step 6: Final answer
    x = 45,726.30

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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.