Home / 91,623.57-126,438.95-51,337.20

Finding the Fourth Proportional to 91,623.57, 126,438.95 and 51,337.20

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Solution

The fourth proportional to 91,623.57, 126,438.95 and 51,337.20 is: 70,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,623.57 : 126,438.95 = 51,337.20 : x
  2. Step 2: Convert to fraction form
    91,623.57/126,438.95 = 51,337.20/x
  3. Step 3: Cross multiply
    91,623.57x = 126,438.95 × 51,337.20
  4. Step 4: Simplify right side
    91,623.57x = 6,491,021,407.25
  5. Step 5: Solve for x
    x = 6,491,021,407.25/91,623.57
  6. Step 6: Final answer
    x = 70,844.45

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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.