Home / 78,696.13-108,600.68-42,886.15

Finding the Fourth Proportional to 78,696.13, 108,600.68 and 42,886.15

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Solution

The fourth proportional to 78,696.13, 108,600.68 and 42,886.15 is: 59,182.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,696.13 : 108,600.68 = 42,886.15 : x
  2. Step 2: Convert to fraction form
    78,696.13/108,600.68 = 42,886.15/x
  3. Step 3: Cross multiply
    78,696.13x = 108,600.68 × 42,886.15
  4. Step 4: Simplify right side
    78,696.13x = 4,657,464,566.65
  5. Step 5: Solve for x
    x = 4,657,464,566.65/78,696.13
  6. Step 6: Final answer
    x = 59,182.89

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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.