Home / 80,538.40-111,144.08-44,730.72

Finding the Fourth Proportional to 80,538.40, 111,144.08 and 44,730.72

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Solution

The fourth proportional to 80,538.40, 111,144.08 and 44,730.72 is: 61,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,538.40 : 111,144.08 = 44,730.72 : x
  2. Step 2: Convert to fraction form
    80,538.40/111,144.08 = 44,730.72/x
  3. Step 3: Cross multiply
    80,538.40x = 111,144.08 × 44,730.72
  4. Step 4: Simplify right side
    80,538.40x = 4,971,554,722.14
  5. Step 5: Solve for x
    x = 4,971,554,722.14/80,538.40
  6. Step 6: Final answer
    x = 61,729.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.