Home / 47,136.23-70,689.31-15,540.40

Finding the Fourth Proportional to 47,136.23, 70,689.31 and 15,540.40

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Solution

The fourth proportional to 47,136.23, 70,689.31 and 15,540.40 is: 23,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,136.23 : 70,689.31 = 15,540.40 : x
  2. Step 2: Convert to fraction form
    47,136.23/70,689.31 = 15,540.40/x
  3. Step 3: Cross multiply
    47,136.23x = 70,689.31 × 15,540.40
  4. Step 4: Simplify right side
    47,136.23x = 1,098,540,153.12
  5. Step 5: Solve for x
    x = 1,098,540,153.12/47,136.23
  6. Step 6: Final answer
    x = 23,305.64

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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.