Home / 91,402.39-126,141.73-51,119.90

Finding the Fourth Proportional to 91,402.39, 126,141.73 and 51,119.90

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Solution

The fourth proportional to 91,402.39, 126,141.73 and 51,119.90 is: 70,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,402.39 : 126,141.73 = 51,119.90 : x
  2. Step 2: Convert to fraction form
    91,402.39/126,141.73 = 51,119.90/x
  3. Step 3: Cross multiply
    91,402.39x = 126,141.73 × 51,119.90
  4. Step 4: Simplify right side
    91,402.39x = 6,448,352,623.43
  5. Step 5: Solve for x
    x = 6,448,352,623.43/91,402.39
  6. Step 6: Final answer
    x = 70,549.06

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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.