Home / 78,066.80-107,734.14-47,868.75

Finding the Fourth Proportional to 78,066.80, 107,734.14 and 47,868.75

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Solution

The fourth proportional to 78,066.80, 107,734.14 and 47,868.75 is: 66,060.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,066.80 : 107,734.14 = 47,868.75 : x
  2. Step 2: Convert to fraction form
    78,066.80/107,734.14 = 47,868.75/x
  3. Step 3: Cross multiply
    78,066.80x = 107,734.14 × 47,868.75
  4. Step 4: Simplify right side
    78,066.80x = 5,157,098,614.13
  5. Step 5: Solve for x
    x = 5,157,098,614.13/78,066.80
  6. Step 6: Final answer
    x = 66,060.08

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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.