Home / 91,930.47-126,865.76-51,098.42

Finding the Fourth Proportional to 91,930.47, 126,865.76 and 51,098.42

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Solution

The fourth proportional to 91,930.47, 126,865.76 and 51,098.42 is: 70,516.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,930.47 : 126,865.76 = 51,098.42 : x
  2. Step 2: Convert to fraction form
    91,930.47/126,865.76 = 51,098.42/x
  3. Step 3: Cross multiply
    91,930.47x = 126,865.76 × 51,098.42
  4. Step 4: Simplify right side
    91,930.47x = 6,482,639,888.10
  5. Step 5: Solve for x
    x = 6,482,639,888.10/91,930.47
  6. Step 6: Final answer
    x = 70,516.77

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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.