Home / 91,722.20-137,583.30-44,965.40

Finding the Fourth Proportional to 91,722.20, 137,583.30 and 44,965.40

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Solution

The fourth proportional to 91,722.20, 137,583.30 and 44,965.40 is: 67,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,722.20 : 137,583.30 = 44,965.40 : x
  2. Step 2: Convert to fraction form
    91,722.20/137,583.30 = 44,965.40/x
  3. Step 3: Cross multiply
    91,722.20x = 137,583.30 × 44,965.40
  4. Step 4: Simplify right side
    91,722.20x = 6,186,488,117.82
  5. Step 5: Solve for x
    x = 6,186,488,117.82/91,722.20
  6. Step 6: Final answer
    x = 67,448.10

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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.