Home / 91,609.10-126,419.01-51,322.73

Finding the Fourth Proportional to 91,609.10, 126,419.01 and 51,322.73

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Solution

The fourth proportional to 91,609.10, 126,419.01 and 51,322.73 is: 70,824.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609.10 : 126,419.01 = 51,322.73 : x
  2. Step 2: Convert to fraction form
    91,609.10/126,419.01 = 51,322.73/x
  3. Step 3: Cross multiply
    91,609.10x = 126,419.01 × 51,322.73
  4. Step 4: Simplify right side
    91,609.10x = 6,488,168,085.00
  5. Step 5: Solve for x
    x = 6,488,168,085.00/91,609.10
  6. Step 6: Final answer
    x = 70,824.50

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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.