Home / 77,764.86-116,643.17-38,308.65

Finding the Fourth Proportional to 77,764.86, 116,643.17 and 38,308.65

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Solution

The fourth proportional to 77,764.86, 116,643.17 and 38,308.65 is: 57,460.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,764.86 : 116,643.17 = 38,308.65 : x
  2. Step 2: Convert to fraction form
    77,764.86/116,643.17 = 38,308.65/x
  3. Step 3: Cross multiply
    77,764.86x = 116,643.17 × 38,308.65
  4. Step 4: Simplify right side
    77,764.86x = 4,468,442,470.19
  5. Step 5: Solve for x
    x = 4,468,442,470.19/77,764.86
  6. Step 6: Final answer
    x = 57,460.95

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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.