Home / 91,735.09-126,536.15-66,278.86

Finding the Fourth Proportional to 91,735.09, 126,536.15 and 66,278.86

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Solution

The fourth proportional to 91,735.09, 126,536.15 and 66,278.86 is: 91,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,735.09 : 126,536.15 = 66,278.86 : x
  2. Step 2: Convert to fraction form
    91,735.09/126,536.15 = 66,278.86/x
  3. Step 3: Cross multiply
    91,735.09x = 126,536.15 × 66,278.86
  4. Step 4: Simplify right side
    91,735.09x = 8,386,671,620.15
  5. Step 5: Solve for x
    x = 8,386,671,620.15/91,735.09
  6. Step 6: Final answer
    x = 91,422.72

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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.