Home / 71,869.76-99,183.28-40,038.64

Finding the Fourth Proportional to 71,869.76, 99,183.28 and 40,038.64

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Solution

The fourth proportional to 71,869.76, 99,183.28 and 40,038.64 is: 55,255.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,869.76 : 99,183.28 = 40,038.64 : x
  2. Step 2: Convert to fraction form
    71,869.76/99,183.28 = 40,038.64/x
  3. Step 3: Cross multiply
    71,869.76x = 99,183.28 × 40,038.64
  4. Step 4: Simplify right side
    71,869.76x = 3,971,163,641.94
  5. Step 5: Solve for x
    x = 3,971,163,641.94/71,869.76
  6. Step 6: Final answer
    x = 55,255.00

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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.