Home / 90,925.89-125,489.19-55,111.35

Finding the Fourth Proportional to 90,925.89, 125,489.19 and 55,111.35

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Solution

The fourth proportional to 90,925.89, 125,489.19 and 55,111.35 is: 76,060.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,925.89 : 125,489.19 = 55,111.35 : x
  2. Step 2: Convert to fraction form
    90,925.89/125,489.19 = 55,111.35/x
  3. Step 3: Cross multiply
    90,925.89x = 125,489.19 × 55,111.35
  4. Step 4: Simplify right side
    90,925.89x = 6,915,878,671.31
  5. Step 5: Solve for x
    x = 6,915,878,671.31/90,925.89
  6. Step 6: Final answer
    x = 76,060.61

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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.