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Finding the Fourth Proportional to 63,159.21, 87,159.71 and 34,864.90

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Solution

The fourth proportional to 63,159.21, 87,159.71 and 34,864.90 is: 48,113.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,159.21 : 87,159.71 = 34,864.90 : x
  2. Step 2: Convert to fraction form
    63,159.21/87,159.71 = 34,864.90/x
  3. Step 3: Cross multiply
    63,159.21x = 87,159.71 × 34,864.90
  4. Step 4: Simplify right side
    63,159.21x = 3,038,814,442.44
  5. Step 5: Solve for x
    x = 3,038,814,442.44/63,159.21
  6. Step 6: Final answer
    x = 48,113.56

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1.5x scale

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.