Home / 41,320.80-61,981.20-25,538.40

Finding the Fourth Proportional to 41,320.80, 61,981.20 and 25,538.40

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Solution

The fourth proportional to 41,320.80, 61,981.20 and 25,538.40 is: 38,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,320.80 : 61,981.20 = 25,538.40 : x
  2. Step 2: Convert to fraction form
    41,320.80/61,981.20 = 25,538.40/x
  3. Step 3: Cross multiply
    41,320.80x = 61,981.20 × 25,538.40
  4. Step 4: Simplify right side
    41,320.80x = 1,582,900,678.08
  5. Step 5: Solve for x
    x = 1,582,900,678.08/41,320.80
  6. Step 6: Final answer
    x = 38,307.60

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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.