Home / 60,530.31-90,795.92-21,087.36

Finding the Fourth Proportional to 60,530.31, 90,795.92 and 21,087.36

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Solution

The fourth proportional to 60,530.31, 90,795.92 and 21,087.36 is: 31,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,530.31 : 90,795.92 = 21,087.36 : x
  2. Step 2: Convert to fraction form
    60,530.31/90,795.92 = 21,087.36/x
  3. Step 3: Cross multiply
    60,530.31x = 90,795.92 × 21,087.36
  4. Step 4: Simplify right side
    60,530.31x = 1,914,646,251.57
  5. Step 5: Solve for x
    x = 1,914,646,251.57/60,530.31
  6. Step 6: Final answer
    x = 31,631.20

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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.