Home / 78,735.12-118,078.45-22,560.18

Finding the Fourth Proportional to 78,735.12, 118,078.45 and 22,560.18

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Solution

The fourth proportional to 78,735.12, 118,078.45 and 22,560.18 is: 33,833.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,735.12 : 118,078.45 = 22,560.18 : x
  2. Step 2: Convert to fraction form
    78,735.12/118,078.45 = 22,560.18/x
  3. Step 3: Cross multiply
    78,735.12x = 118,078.45 × 22,560.18
  4. Step 4: Simplify right side
    78,735.12x = 2,663,871,086.12
  5. Step 5: Solve for x
    x = 2,663,871,086.12/78,735.12
  6. Step 6: Final answer
    x = 33,833.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.