Home / 42,999.12-64,486.08-18,038.43

Finding the Fourth Proportional to 42,999.12, 64,486.08 and 18,038.43

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Solution

The fourth proportional to 42,999.12, 64,486.08 and 18,038.43 is: 27,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,999.12 : 64,486.08 = 18,038.43 : x
  2. Step 2: Convert to fraction form
    42,999.12/64,486.08 = 18,038.43/x
  3. Step 3: Cross multiply
    42,999.12x = 64,486.08 × 18,038.43
  4. Step 4: Simplify right side
    42,999.12x = 1,163,227,640.05
  5. Step 5: Solve for x
    x = 1,163,227,640.05/42,999.12
  6. Step 6: Final answer
    x = 27,052.36

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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.