Home / 75,687.20-104,445.52-42,152.48

Finding the Fourth Proportional to 75,687.20, 104,445.52 and 42,152.48

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Solution

The fourth proportional to 75,687.20, 104,445.52 and 42,152.48 is: 58,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,687.20 : 104,445.52 = 42,152.48 : x
  2. Step 2: Convert to fraction form
    75,687.20/104,445.52 = 42,152.48/x
  3. Step 3: Cross multiply
    75,687.20x = 104,445.52 × 42,152.48
  4. Step 4: Simplify right side
    75,687.20x = 4,402,637,692.89
  5. Step 5: Solve for x
    x = 4,402,637,692.89/75,687.20
  6. Step 6: Final answer
    x = 58,168.85

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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.