Home / 90,734.18-125,212.50-50,447.61

Finding the Fourth Proportional to 90,734.18, 125,212.50 and 50,447.61

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Solution

The fourth proportional to 90,734.18, 125,212.50 and 50,447.61 is: 69,617.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,734.18 : 125,212.50 = 50,447.61 : x
  2. Step 2: Convert to fraction form
    90,734.18/125,212.50 = 50,447.61/x
  3. Step 3: Cross multiply
    90,734.18x = 125,212.50 × 50,447.61
  4. Step 4: Simplify right side
    90,734.18x = 6,316,671,367.13
  5. Step 5: Solve for x
    x = 6,316,671,367.13/90,734.18
  6. Step 6: Final answer
    x = 69,617.33

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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.