Home / 71,871.28-99,182.52-40,041.32

Finding the Fourth Proportional to 71,871.28, 99,182.52 and 40,041.32

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Solution

The fourth proportional to 71,871.28, 99,182.52 and 40,041.32 is: 55,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,871.28 : 99,182.52 = 40,041.32 : x
  2. Step 2: Convert to fraction form
    71,871.28/99,182.52 = 40,041.32/x
  3. Step 3: Cross multiply
    71,871.28x = 99,182.52 × 40,041.32
  4. Step 4: Simplify right side
    71,871.28x = 3,971,398,525.81
  5. Step 5: Solve for x
    x = 3,971,398,525.81/71,871.28
  6. Step 6: Final answer
    x = 55,257.10

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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.