Home / 98,499.28-147,745.08-39,317.20

Finding the Fourth Proportional to 98,499.28, 147,745.08 and 39,317.20

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Solution

The fourth proportional to 98,499.28, 147,745.08 and 39,317.20 is: 58,974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,499.28 : 147,745.08 = 39,317.20 : x
  2. Step 2: Convert to fraction form
    98,499.28/147,745.08 = 39,317.20/x
  3. Step 3: Cross multiply
    98,499.28x = 147,745.08 × 39,317.20
  4. Step 4: Simplify right side
    98,499.28x = 5,808,922,859.38
  5. Step 5: Solve for x
    x = 5,808,922,859.38/98,499.28
  6. Step 6: Final answer
    x = 58,974.27

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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.