Home / 42,755.49-64,133.24-11,590.74

Finding the Fourth Proportional to 42,755.49, 64,133.24 and 11,590.74

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Solution

The fourth proportional to 42,755.49, 64,133.24 and 11,590.74 is: 17,386.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,755.49 : 64,133.24 = 11,590.74 : x
  2. Step 2: Convert to fraction form
    42,755.49/64,133.24 = 11,590.74/x
  3. Step 3: Cross multiply
    42,755.49x = 64,133.24 × 11,590.74
  4. Step 4: Simplify right side
    42,755.49x = 743,351,652.24
  5. Step 5: Solve for x
    x = 743,351,652.24/42,755.49
  6. Step 6: Final answer
    x = 17,386.11

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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.