Home / 42,694.12-64,041.18-14,614.54

Finding the Fourth Proportional to 42,694.12, 64,041.18 and 14,614.54

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Solution

The fourth proportional to 42,694.12, 64,041.18 and 14,614.54 is: 21,921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,694.12 : 64,041.18 = 14,614.54 : x
  2. Step 2: Convert to fraction form
    42,694.12/64,041.18 = 14,614.54/x
  3. Step 3: Cross multiply
    42,694.12x = 64,041.18 × 14,614.54
  4. Step 4: Simplify right side
    42,694.12x = 935,932,386.76
  5. Step 5: Solve for x
    x = 935,932,386.76/42,694.12
  6. Step 6: Final answer
    x = 21,921.81

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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.