Home / 77,275.05-115,922.13-27,345.15

Finding the Fourth Proportional to 77,275.05, 115,922.13 and 27,345.15

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Solution

The fourth proportional to 77,275.05, 115,922.13 and 27,345.15 is: 41,021.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,275.05 : 115,922.13 = 27,345.15 : x
  2. Step 2: Convert to fraction form
    77,275.05/115,922.13 = 27,345.15/x
  3. Step 3: Cross multiply
    77,275.05x = 115,922.13 × 27,345.15
  4. Step 4: Simplify right side
    77,275.05x = 3,169,908,033.17
  5. Step 5: Solve for x
    x = 3,169,908,033.17/77,275.05
  6. Step 6: Final answer
    x = 41,021.11

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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.