Home / 91,965.53-126,916.18-51,679.16

Finding the Fourth Proportional to 91,965.53, 126,916.18 and 51,679.16

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Solution

The fourth proportional to 91,965.53, 126,916.18 and 51,679.16 is: 71,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,965.53 : 126,916.18 = 51,679.16 : x
  2. Step 2: Convert to fraction form
    91,965.53/126,916.18 = 51,679.16/x
  3. Step 3: Cross multiply
    91,965.53x = 126,916.18 × 51,679.16
  4. Step 4: Simplify right side
    91,965.53x = 6,558,921,760.90
  5. Step 5: Solve for x
    x = 6,558,921,760.90/91,965.53
  6. Step 6: Final answer
    x = 71,319.35

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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.