Home / 61,256.16-84,456-40,001.76

Finding the Fourth Proportional to 61,256.16, 84,456 and 40,001.76

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Solution

The fourth proportional to 61,256.16, 84,456 and 40,001.76 is: 55,151.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,256.16 : 84,456 = 40,001.76 : x
  2. Step 2: Convert to fraction form
    61,256.16/84,456 = 40,001.76/x
  3. Step 3: Cross multiply
    61,256.16x = 84,456 × 40,001.76
  4. Step 4: Simplify right side
    61,256.16x = 3,378,388,642.56
  5. Step 5: Solve for x
    x = 3,378,388,642.56/61,256.16
  6. Step 6: Final answer
    x = 55,151.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.