Home / 77,790.45-116,691.81-38,326.05

Finding the Fourth Proportional to 77,790.45, 116,691.81 and 38,326.05

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Solution

The fourth proportional to 77,790.45, 116,691.81 and 38,326.05 is: 57,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,790.45 : 116,691.81 = 38,326.05 : x
  2. Step 2: Convert to fraction form
    77,790.45/116,691.81 = 38,326.05/x
  3. Step 3: Cross multiply
    77,790.45x = 116,691.81 × 38,326.05
  4. Step 4: Simplify right side
    77,790.45x = 4,472,336,144.65
  5. Step 5: Solve for x
    x = 4,472,336,144.65/77,790.45
  6. Step 6: Final answer
    x = 57,492.10

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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.