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Finding the Fourth Proportional to 101,035.48, 139,422.52 and 55,713.75

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Solution

The fourth proportional to 101,035.48, 139,422.52 and 55,713.75 is: 76,881.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,035.48 : 139,422.52 = 55,713.75 : x
  2. Step 2: Convert to fraction form
    101,035.48/139,422.52 = 55,713.75/x
  3. Step 3: Cross multiply
    101,035.48x = 139,422.52 × 55,713.75
  4. Step 4: Simplify right side
    101,035.48x = 7,767,751,423.65
  5. Step 5: Solve for x
    x = 7,767,751,423.65/101,035.48
  6. Step 6: Final answer
    x = 76,881.42

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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.