Home / 71,338.10-98,438.63-39,499.02

Finding the Fourth Proportional to 71,338.10, 98,438.63 and 39,499.02

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Solution

The fourth proportional to 71,338.10, 98,438.63 and 39,499.02 is: 54,504.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,338.10 : 98,438.63 = 39,499.02 : x
  2. Step 2: Convert to fraction form
    71,338.10/98,438.63 = 39,499.02/x
  3. Step 3: Cross multiply
    71,338.10x = 98,438.63 × 39,499.02
  4. Step 4: Simplify right side
    71,338.10x = 3,888,229,217.65
  5. Step 5: Solve for x
    x = 3,888,229,217.65/71,338.10
  6. Step 6: Final answer
    x = 54,504.25

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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.