Home / 109,378.24-164,065.04-30,490.40

Finding the Fourth Proportional to 109,378.24, 164,065.04 and 30,490.40

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Solution

The fourth proportional to 109,378.24, 164,065.04 and 30,490.40 is: 45,734.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,378.24 : 164,065.04 = 30,490.40 : x
  2. Step 2: Convert to fraction form
    109,378.24/164,065.04 = 30,490.40/x
  3. Step 3: Cross multiply
    109,378.24x = 164,065.04 × 30,490.40
  4. Step 4: Simplify right side
    109,378.24x = 5,002,408,695.62
  5. Step 5: Solve for x
    x = 5,002,408,695.62/109,378.24
  6. Step 6: Final answer
    x = 45,734.95

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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.