Home / 42,998.79-64,523.09-18,036.61

Finding the Fourth Proportional to 42,998.79, 64,523.09 and 18,036.61

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Solution

The fourth proportional to 42,998.79, 64,523.09 and 18,036.61 is: 27,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,998.79 : 64,523.09 = 18,036.61 : x
  2. Step 2: Convert to fraction form
    42,998.79/64,523.09 = 18,036.61/x
  3. Step 3: Cross multiply
    42,998.79x = 64,523.09 × 18,036.61
  4. Step 4: Simplify right side
    42,998.79x = 1,163,777,810.32
  5. Step 5: Solve for x
    x = 1,163,777,810.32/42,998.79
  6. Step 6: Final answer
    x = 27,065.36

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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.