Home / 91,909.61-126,826.30-51,614.21

Finding the Fourth Proportional to 91,909.61, 126,826.30 and 51,614.21

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Solution

The fourth proportional to 91,909.61, 126,826.30 and 51,614.21 is: 71,222.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,909.61 : 126,826.30 = 51,614.21 : x
  2. Step 2: Convert to fraction form
    91,909.61/126,826.30 = 51,614.21/x
  3. Step 3: Cross multiply
    91,909.61x = 126,826.30 × 51,614.21
  4. Step 4: Simplify right side
    91,909.61x = 6,546,039,281.72
  5. Step 5: Solve for x
    x = 6,546,039,281.72/91,909.61
  6. Step 6: Final answer
    x = 71,222.58

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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.