Home / 78,287.77-108,065.14-46,456.66

Finding the Fourth Proportional to 78,287.77, 108,065.14 and 46,456.66

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Solution

The fourth proportional to 78,287.77, 108,065.14 and 46,456.66 is: 64,126.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,287.77 : 108,065.14 = 46,456.66 : x
  2. Step 2: Convert to fraction form
    78,287.77/108,065.14 = 46,456.66/x
  3. Step 3: Cross multiply
    78,287.77x = 108,065.14 × 46,456.66
  4. Step 4: Simplify right side
    78,287.77x = 5,020,345,789.71
  5. Step 5: Solve for x
    x = 5,020,345,789.71/78,287.77
  6. Step 6: Final answer
    x = 64,126.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.