Home / 78,716.07-108,627.08-42,906.23

Finding the Fourth Proportional to 78,716.07, 108,627.08 and 42,906.23

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Solution

The fourth proportional to 78,716.07, 108,627.08 and 42,906.23 is: 59,209.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,716.07 : 108,627.08 = 42,906.23 : x
  2. Step 2: Convert to fraction form
    78,716.07/108,627.08 = 42,906.23/x
  3. Step 3: Cross multiply
    78,716.07x = 108,627.08 × 42,906.23
  4. Step 4: Simplify right side
    78,716.07x = 4,660,777,721.04
  5. Step 5: Solve for x
    x = 4,660,777,721.04/78,716.07
  6. Step 6: Final answer
    x = 59,209.99

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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.