Home / 51,209.20-76,862.40-31,526.20

Finding the Fourth Proportional to 51,209.20, 76,862.40 and 31,526.20

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Solution

The fourth proportional to 51,209.20, 76,862.40 and 31,526.20 is: 47,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,209.20 : 76,862.40 = 31,526.20 : x
  2. Step 2: Convert to fraction form
    51,209.20/76,862.40 = 31,526.20/x
  3. Step 3: Cross multiply
    51,209.20x = 76,862.40 × 31,526.20
  4. Step 4: Simplify right side
    51,209.20x = 2,423,179,394.88
  5. Step 5: Solve for x
    x = 2,423,179,394.88/51,209.20
  6. Step 6: Final answer
    x = 47,319.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.