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Finding the Fourth Proportional to 63,129.51, 87,127.03 and 43,996.90

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Solution

The fourth proportional to 63,129.51, 87,127.03 and 43,996.90 is: 60,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,129.51 : 87,127.03 = 43,996.90 : x
  2. Step 2: Convert to fraction form
    63,129.51/87,127.03 = 43,996.90/x
  3. Step 3: Cross multiply
    63,129.51x = 87,127.03 × 43,996.90
  4. Step 4: Simplify right side
    63,129.51x = 3,833,319,226.21
  5. Step 5: Solve for x
    x = 3,833,319,226.21/63,129.51
  6. Step 6: Final answer
    x = 60,721.51

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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.