Home / 91,427.89-126,169.85-51,141.49

Finding the Fourth Proportional to 91,427.89, 126,169.85 and 51,141.49

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Solution

The fourth proportional to 91,427.89, 126,169.85 and 51,141.49 is: 70,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,427.89 : 126,169.85 = 51,141.49 : x
  2. Step 2: Convert to fraction form
    91,427.89/126,169.85 = 51,141.49/x
  3. Step 3: Cross multiply
    91,427.89x = 126,169.85 × 51,141.49
  4. Step 4: Simplify right side
    91,427.89x = 6,452,513,866.37
  5. Step 5: Solve for x
    x = 6,452,513,866.37/91,427.89
  6. Step 6: Final answer
    x = 70,574.90

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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.