Home / 91,861.77-126,759.45-51,579.93

Finding the Fourth Proportional to 91,861.77, 126,759.45 and 51,579.93

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Solution

The fourth proportional to 91,861.77, 126,759.45 and 51,579.93 is: 71,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,861.77 : 126,759.45 = 51,579.93 : x
  2. Step 2: Convert to fraction form
    91,861.77/126,759.45 = 51,579.93/x
  3. Step 3: Cross multiply
    91,861.77x = 126,759.45 × 51,579.93
  4. Step 4: Simplify right side
    91,861.77x = 6,538,243,557.84
  5. Step 5: Solve for x
    x = 6,538,243,557.84/91,861.77
  6. Step 6: Final answer
    x = 71,174.80

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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.