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Finding the Fourth Proportional to 47,471, 71,159.92 and 26,421.12

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Solution

The fourth proportional to 47,471, 71,159.92 and 26,421.12 is: 39,605.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,471 : 71,159.92 = 26,421.12 : x
  2. Step 2: Convert to fraction form
    47,471/71,159.92 = 26,421.12/x
  3. Step 3: Cross multiply
    47,471x = 71,159.92 × 26,421.12
  4. Step 4: Simplify right side
    47,471x = 1,880,124,785.51
  5. Step 5: Solve for x
    x = 1,880,124,785.51/47,471
  6. Step 6: Final answer
    x = 39,605.75

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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.