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Finding the Fourth Proportional to 63,138.69, 87,130.99 and 34,844.38

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Solution

The fourth proportional to 63,138.69, 87,130.99 and 34,844.38 is: 48,085.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,138.69 : 87,130.99 = 34,844.38 : x
  2. Step 2: Convert to fraction form
    63,138.69/87,130.99 = 34,844.38/x
  3. Step 3: Cross multiply
    63,138.69x = 87,130.99 × 34,844.38
  4. Step 4: Simplify right side
    63,138.69x = 3,036,025,151.06
  5. Step 5: Solve for x
    x = 3,036,025,151.06/63,138.69
  6. Step 6: Final answer
    x = 48,085.02

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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.