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Finding the Fourth Proportional to 90,110.84, 124,362.24 and 51,871.82

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Solution

The fourth proportional to 90,110.84, 124,362.24 and 51,871.82 is: 71,588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,110.84 : 124,362.24 = 51,871.82 : x
  2. Step 2: Convert to fraction form
    90,110.84/124,362.24 = 51,871.82/x
  3. Step 3: Cross multiply
    90,110.84x = 124,362.24 × 51,871.82
  4. Step 4: Simplify right side
    90,110.84x = 6,450,895,728.08
  5. Step 5: Solve for x
    x = 6,450,895,728.08/90,110.84
  6. Step 6: Final answer
    x = 71,588.45

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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.