Home / 91,861.01-126,758.40-51,579.17

Finding the Fourth Proportional to 91,861.01, 126,758.40 and 51,579.17

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Solution

The fourth proportional to 91,861.01, 126,758.40 and 51,579.17 is: 71,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,861.01 : 126,758.40 = 51,579.17 : x
  2. Step 2: Convert to fraction form
    91,861.01/126,758.40 = 51,579.17/x
  3. Step 3: Cross multiply
    91,861.01x = 126,758.40 × 51,579.17
  4. Step 4: Simplify right side
    91,861.01x = 6,538,092,428.74
  5. Step 5: Solve for x
    x = 6,538,092,428.74/91,861.01
  6. Step 6: Final answer
    x = 71,173.75

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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.