Home / 51,782.40-71,441.28-30,551.04

Finding the Fourth Proportional to 51,782.40, 71,441.28 and 30,551.04

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Solution

The fourth proportional to 51,782.40, 71,441.28 and 30,551.04 is: 42,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,782.40 : 71,441.28 = 30,551.04 : x
  2. Step 2: Convert to fraction form
    51,782.40/71,441.28 = 30,551.04/x
  3. Step 3: Cross multiply
    51,782.40x = 71,441.28 × 30,551.04
  4. Step 4: Simplify right side
    51,782.40x = 2,182,605,402.93
  5. Step 5: Solve for x
    x = 2,182,605,402.93/51,782.40
  6. Step 6: Final answer
    x = 42,149.56

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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.