Home / 42,135.04-63,214.38-18,444.66

Finding the Fourth Proportional to 42,135.04, 63,214.38 and 18,444.66

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Solution

The fourth proportional to 42,135.04, 63,214.38 and 18,444.66 is: 27,672.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,135.04 : 63,214.38 = 18,444.66 : x
  2. Step 2: Convert to fraction form
    42,135.04/63,214.38 = 18,444.66/x
  3. Step 3: Cross multiply
    42,135.04x = 63,214.38 × 18,444.66
  4. Step 4: Simplify right side
    42,135.04x = 1,165,967,746.21
  5. Step 5: Solve for x
    x = 1,165,967,746.21/42,135.04
  6. Step 6: Final answer
    x = 27,672.16

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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.