Home / 84,791.06-127,189.32-42,648.14

Finding the Fourth Proportional to 84,791.06, 127,189.32 and 42,648.14

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Solution

The fourth proportional to 84,791.06, 127,189.32 and 42,648.14 is: 63,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,791.06 : 127,189.32 = 42,648.14 : x
  2. Step 2: Convert to fraction form
    84,791.06/127,189.32 = 42,648.14/x
  3. Step 3: Cross multiply
    84,791.06x = 127,189.32 × 42,648.14
  4. Step 4: Simplify right side
    84,791.06x = 5,424,387,925.86
  5. Step 5: Solve for x
    x = 5,424,387,925.86/84,791.06
  6. Step 6: Final answer
    x = 63,973.58

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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.