Home / 72,175.92-99,599.28-40,344.56

Finding the Fourth Proportional to 72,175.92, 99,599.28 and 40,344.56

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Solution

The fourth proportional to 72,175.92, 99,599.28 and 40,344.56 is: 55,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,175.92 : 99,599.28 = 40,344.56 : x
  2. Step 2: Convert to fraction form
    72,175.92/99,599.28 = 40,344.56/x
  3. Step 3: Cross multiply
    72,175.92x = 99,599.28 × 40,344.56
  4. Step 4: Simplify right side
    72,175.92x = 4,018,289,127.92
  5. Step 5: Solve for x
    x = 4,018,289,127.92/72,175.92
  6. Step 6: Final answer
    x = 55,673.54

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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.