Home / 91,499.09-126,269.21-51,213.64

Finding the Fourth Proportional to 91,499.09, 126,269.21 and 51,213.64

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Solution

The fourth proportional to 91,499.09, 126,269.21 and 51,213.64 is: 70,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,499.09 : 126,269.21 = 51,213.64 : x
  2. Step 2: Convert to fraction form
    91,499.09/126,269.21 = 51,213.64/x
  3. Step 3: Cross multiply
    91,499.09x = 126,269.21 × 51,213.64
  4. Step 4: Simplify right side
    91,499.09x = 6,466,705,864.02
  5. Step 5: Solve for x
    x = 6,466,705,864.02/91,499.09
  6. Step 6: Final answer
    x = 70,675.08

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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.