Home / 74,587.72-111,881.62-51,143.08

Finding the Fourth Proportional to 74,587.72, 111,881.62 and 51,143.08

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Solution

The fourth proportional to 74,587.72, 111,881.62 and 51,143.08 is: 76,714.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,587.72 : 111,881.62 = 51,143.08 : x
  2. Step 2: Convert to fraction form
    74,587.72/111,881.62 = 51,143.08/x
  3. Step 3: Cross multiply
    74,587.72x = 111,881.62 × 51,143.08
  4. Step 4: Simplify right side
    74,587.72x = 5,721,970,642.19
  5. Step 5: Solve for x
    x = 5,721,970,642.19/74,587.72
  6. Step 6: Final answer
    x = 76,714.65

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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.