Home / 100,044.11-138,055.73-54,713.27

Finding the Fourth Proportional to 100,044.11, 138,055.73 and 54,713.27

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Solution

The fourth proportional to 100,044.11, 138,055.73 and 54,713.27 is: 75,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,044.11 : 138,055.73 = 54,713.27 : x
  2. Step 2: Convert to fraction form
    100,044.11/138,055.73 = 54,713.27/x
  3. Step 3: Cross multiply
    100,044.11x = 138,055.73 × 54,713.27
  4. Step 4: Simplify right side
    100,044.11x = 7,553,480,502.11
  5. Step 5: Solve for x
    x = 7,553,480,502.11/100,044.11
  6. Step 6: Final answer
    x = 75,501.50

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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.