Home / 91,433.19-126,188.25-51,157.15

Finding the Fourth Proportional to 91,433.19, 126,188.25 and 51,157.15

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Solution

The fourth proportional to 91,433.19, 126,188.25 and 51,157.15 is: 70,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,433.19 : 126,188.25 = 51,157.15 : x
  2. Step 2: Convert to fraction form
    91,433.19/126,188.25 = 51,157.15/x
  3. Step 3: Cross multiply
    91,433.19x = 126,188.25 × 51,157.15
  4. Step 4: Simplify right side
    91,433.19x = 6,455,431,233.49
  5. Step 5: Solve for x
    x = 6,455,431,233.49/91,433.19
  6. Step 6: Final answer
    x = 70,602.71

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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.