Home / 75,120.24-103,667.40-43,283.76

Finding the Fourth Proportional to 75,120.24, 103,667.40 and 43,283.76

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Solution

The fourth proportional to 75,120.24, 103,667.40 and 43,283.76 is: 59,732.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,120.24 : 103,667.40 = 43,283.76 : x
  2. Step 2: Convert to fraction form
    75,120.24/103,667.40 = 43,283.76/x
  3. Step 3: Cross multiply
    75,120.24x = 103,667.40 × 43,283.76
  4. Step 4: Simplify right side
    75,120.24x = 4,487,114,861.42
  5. Step 5: Solve for x
    x = 4,487,114,861.42/75,120.24
  6. Step 6: Final answer
    x = 59,732.44

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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.