Home / 91,620.14-126,433.59-51,335.60

Finding the Fourth Proportional to 91,620.14, 126,433.59 and 51,335.60

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Solution

The fourth proportional to 91,620.14, 126,433.59 and 51,335.60 is: 70,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,620.14 : 126,433.59 = 51,335.60 : x
  2. Step 2: Convert to fraction form
    91,620.14/126,433.59 = 51,335.60/x
  3. Step 3: Cross multiply
    91,620.14x = 126,433.59 × 51,335.60
  4. Step 4: Simplify right side
    91,620.14x = 6,490,544,202.80
  5. Step 5: Solve for x
    x = 6,490,544,202.80/91,620.14
  6. Step 6: Final answer
    x = 70,841.89

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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.