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Finding the Fourth Proportional to 63,810.90, 95,719.95 and 19,439.10

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Solution

The fourth proportional to 63,810.90, 95,719.95 and 19,439.10 is: 29,159.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,810.90 : 95,719.95 = 19,439.10 : x
  2. Step 2: Convert to fraction form
    63,810.90/95,719.95 = 19,439.10/x
  3. Step 3: Cross multiply
    63,810.90x = 95,719.95 × 19,439.10
  4. Step 4: Simplify right side
    63,810.90x = 1,860,709,680.05
  5. Step 5: Solve for x
    x = 1,860,709,680.05/63,810.90
  6. Step 6: Final answer
    x = 29,159.75

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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.