Home / 78,128.01-107,823.26-44,142.73

Finding the Fourth Proportional to 78,128.01, 107,823.26 and 44,142.73

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Solution

The fourth proportional to 78,128.01, 107,823.26 and 44,142.73 is: 60,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,128.01 : 107,823.26 = 44,142.73 : x
  2. Step 2: Convert to fraction form
    78,128.01/107,823.26 = 44,142.73/x
  3. Step 3: Cross multiply
    78,128.01x = 107,823.26 × 44,142.73
  4. Step 4: Simplify right side
    78,128.01x = 4,759,612,894.70
  5. Step 5: Solve for x
    x = 4,759,612,894.70/78,128.01
  6. Step 6: Final answer
    x = 60,920.70

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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.