Home / 43,081.17-64,621.79-13,501.31

Finding the Fourth Proportional to 43,081.17, 64,621.79 and 13,501.31

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Solution

The fourth proportional to 43,081.17, 64,621.79 and 13,501.31 is: 20,251.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,081.17 : 64,621.79 = 13,501.31 : x
  2. Step 2: Convert to fraction form
    43,081.17/64,621.79 = 13,501.31/x
  3. Step 3: Cross multiply
    43,081.17x = 64,621.79 × 13,501.31
  4. Step 4: Simplify right side
    43,081.17x = 872,478,819.54
  5. Step 5: Solve for x
    x = 872,478,819.54/43,081.17
  6. Step 6: Final answer
    x = 20,251.98

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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.