Home / 91,433.40-126,171.72-51,145.08

Finding the Fourth Proportional to 91,433.40, 126,171.72 and 51,145.08

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Solution

The fourth proportional to 91,433.40, 126,171.72 and 51,145.08 is: 70,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,433.40 : 126,171.72 = 51,145.08 : x
  2. Step 2: Convert to fraction form
    91,433.40/126,171.72 = 51,145.08/x
  3. Step 3: Cross multiply
    91,433.40x = 126,171.72 × 51,145.08
  4. Step 4: Simplify right side
    91,433.40x = 6,453,062,713.14
  5. Step 5: Solve for x
    x = 6,453,062,713.14/91,433.40
  6. Step 6: Final answer
    x = 70,576.65

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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.