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Finding the Fourth Proportional to 63,154.50, 87,153.22 and 34,860.20

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Solution

The fourth proportional to 63,154.50, 87,153.22 and 34,860.20 is: 48,107.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,154.50 : 87,153.22 = 34,860.20 : x
  2. Step 2: Convert to fraction form
    63,154.50/87,153.22 = 34,860.20/x
  3. Step 3: Cross multiply
    63,154.50x = 87,153.22 × 34,860.20
  4. Step 4: Simplify right side
    63,154.50x = 3,038,178,156.93
  5. Step 5: Solve for x
    x = 3,038,178,156.93/63,154.50
  6. Step 6: Final answer
    x = 48,107.07

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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.