Home / 91,425.72-126,166.59-51,139.02

Finding the Fourth Proportional to 91,425.72, 126,166.59 and 51,139.02

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Solution

The fourth proportional to 91,425.72, 126,166.59 and 51,139.02 is: 70,571.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,425.72 : 126,166.59 = 51,139.02 : x
  2. Step 2: Convert to fraction form
    91,425.72/126,166.59 = 51,139.02/x
  3. Step 3: Cross multiply
    91,425.72x = 126,166.59 × 51,139.02
  4. Step 4: Simplify right side
    91,425.72x = 6,452,035,769.34
  5. Step 5: Solve for x
    x = 6,452,035,769.34/91,425.72
  6. Step 6: Final answer
    x = 70,571.34

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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.