Home / 47,942.78-66,161.13-26,721.62

Finding the Fourth Proportional to 47,942.78, 66,161.13 and 26,721.62

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Solution

The fourth proportional to 47,942.78, 66,161.13 and 26,721.62 is: 36,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,942.78 : 66,161.13 = 26,721.62 : x
  2. Step 2: Convert to fraction form
    47,942.78/66,161.13 = 26,721.62/x
  3. Step 3: Cross multiply
    47,942.78x = 66,161.13 × 26,721.62
  4. Step 4: Simplify right side
    47,942.78x = 1,767,932,574.63
  5. Step 5: Solve for x
    x = 1,767,932,574.63/47,942.78
  6. Step 6: Final answer
    x = 36,875.89

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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.