Home / 72,314.28-99,797.40-40,481.28

Finding the Fourth Proportional to 72,314.28, 99,797.40 and 40,481.28

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Solution

The fourth proportional to 72,314.28, 99,797.40 and 40,481.28 is: 55,866.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,314.28 : 99,797.40 = 40,481.28 : x
  2. Step 2: Convert to fraction form
    72,314.28/99,797.40 = 40,481.28/x
  3. Step 3: Cross multiply
    72,314.28x = 99,797.40 × 40,481.28
  4. Step 4: Simplify right side
    72,314.28x = 4,039,926,492.67
  5. Step 5: Solve for x
    x = 4,039,926,492.67/72,314.28
  6. Step 6: Final answer
    x = 55,866.23

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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.