Home / 41,080.78-61,621.18-13,378.78

Finding the Fourth Proportional to 41,080.78, 61,621.18 and 13,378.78

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Solution

The fourth proportional to 41,080.78, 61,621.18 and 13,378.78 is: 20,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,080.78 : 61,621.18 = 13,378.78 : x
  2. Step 2: Convert to fraction form
    41,080.78/61,621.18 = 13,378.78/x
  3. Step 3: Cross multiply
    41,080.78x = 61,621.18 × 13,378.78
  4. Step 4: Simplify right side
    41,080.78x = 824,416,254.14
  5. Step 5: Solve for x
    x = 824,416,254.14/41,080.78
  6. Step 6: Final answer
    x = 20,068.17

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1.5x scale

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.