Home / 91,470.80-126,235.56-51,189.20

Finding the Fourth Proportional to 91,470.80, 126,235.56 and 51,189.20

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Solution

The fourth proportional to 91,470.80, 126,235.56 and 51,189.20 is: 70,644.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,470.80 : 126,235.56 = 51,189.20 : x
  2. Step 2: Convert to fraction form
    91,470.80/126,235.56 = 51,189.20/x
  3. Step 3: Cross multiply
    91,470.80x = 126,235.56 × 51,189.20
  4. Step 4: Simplify right side
    91,470.80x = 6,461,897,327.95
  5. Step 5: Solve for x
    x = 6,461,897,327.95/91,470.80
  6. Step 6: Final answer
    x = 70,644.37

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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.