Home / 78,394.14-108,185.88-42,584.13

Finding the Fourth Proportional to 78,394.14, 108,185.88 and 42,584.13

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Solution

The fourth proportional to 78,394.14, 108,185.88 and 42,584.13 is: 58,767.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,394.14 : 108,185.88 = 42,584.13 : x
  2. Step 2: Convert to fraction form
    78,394.14/108,185.88 = 42,584.13/x
  3. Step 3: Cross multiply
    78,394.14x = 108,185.88 × 42,584.13
  4. Step 4: Simplify right side
    78,394.14x = 4,607,001,578.08
  5. Step 5: Solve for x
    x = 4,607,001,578.08/78,394.14
  6. Step 6: Final answer
    x = 58,767.17

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1.5x scale

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.