Home / 91,390.56-126,119.35-51,104.31

Finding the Fourth Proportional to 91,390.56, 126,119.35 and 51,104.31

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Solution

The fourth proportional to 91,390.56, 126,119.35 and 51,104.31 is: 70,524.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,390.56 : 126,119.35 = 51,104.31 : x
  2. Step 2: Convert to fraction form
    91,390.56/126,119.35 = 51,104.31/x
  3. Step 3: Cross multiply
    91,390.56x = 126,119.35 × 51,104.31
  4. Step 4: Simplify right side
    91,390.56x = 6,445,241,950.33
  5. Step 5: Solve for x
    x = 6,445,241,950.33/91,390.56
  6. Step 6: Final answer
    x = 70,524.16

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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.