Home / 47,981.05-66,246.47-31,026.31

Finding the Fourth Proportional to 47,981.05, 66,246.47 and 31,026.31

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Solution

The fourth proportional to 47,981.05, 66,246.47 and 31,026.31 is: 42,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,981.05 : 66,246.47 = 31,026.31 : x
  2. Step 2: Convert to fraction form
    47,981.05/66,246.47 = 31,026.31/x
  3. Step 3: Cross multiply
    47,981.05x = 66,246.47 × 31,026.31
  4. Step 4: Simplify right side
    47,981.05x = 2,055,383,514.63
  5. Step 5: Solve for x
    x = 2,055,383,514.63/47,981.05
  6. Step 6: Final answer
    x = 42,837.40

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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.