Home / 91,949.40-126,890.28-51,663.13

Finding the Fourth Proportional to 91,949.40, 126,890.28 and 51,663.13

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Solution

The fourth proportional to 91,949.40, 126,890.28 and 51,663.13 is: 71,295.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,949.40 : 126,890.28 = 51,663.13 : x
  2. Step 2: Convert to fraction form
    91,949.40/126,890.28 = 51,663.13/x
  3. Step 3: Cross multiply
    91,949.40x = 126,890.28 × 51,663.13
  4. Step 4: Simplify right side
    91,949.40x = 6,555,549,031.38
  5. Step 5: Solve for x
    x = 6,555,549,031.38/91,949.40
  6. Step 6: Final answer
    x = 71,295.18

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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.