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Finding the Fourth Proportional to 75,999.70, 104,888.47 and 63,230.36

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Solution

The fourth proportional to 75,999.70, 104,888.47 and 63,230.36 is: 87,265.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,999.70 : 104,888.47 = 63,230.36 : x
  2. Step 2: Convert to fraction form
    75,999.70/104,888.47 = 63,230.36/x
  3. Step 3: Cross multiply
    75,999.70x = 104,888.47 × 63,230.36
  4. Step 4: Simplify right side
    75,999.70x = 6,632,135,717.95
  5. Step 5: Solve for x
    x = 6,632,135,717.95/75,999.70
  6. Step 6: Final answer
    x = 87,265.29

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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.