Home / 91,421.85-126,150.80-51,125.52

Finding the Fourth Proportional to 91,421.85, 126,150.80 and 51,125.52

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Solution

The fourth proportional to 91,421.85, 126,150.80 and 51,125.52 is: 70,546.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,421.85 : 126,150.80 = 51,125.52 : x
  2. Step 2: Convert to fraction form
    91,421.85/126,150.80 = 51,125.52/x
  3. Step 3: Cross multiply
    91,421.85x = 126,150.80 × 51,125.52
  4. Step 4: Simplify right side
    91,421.85x = 6,449,525,248.42
  5. Step 5: Solve for x
    x = 6,449,525,248.42/91,421.85
  6. Step 6: Final answer
    x = 70,546.87

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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.