Home / 75,806.08-113,709.42-19,642.16

Finding the Fourth Proportional to 75,806.08, 113,709.42 and 19,642.16

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Solution

The fourth proportional to 75,806.08, 113,709.42 and 19,642.16 is: 29,463.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,806.08 : 113,709.42 = 19,642.16 : x
  2. Step 2: Convert to fraction form
    75,806.08/113,709.42 = 19,642.16/x
  3. Step 3: Cross multiply
    75,806.08x = 113,709.42 × 19,642.16
  4. Step 4: Simplify right side
    75,806.08x = 2,233,498,905.42
  5. Step 5: Solve for x
    x = 2,233,498,905.42/75,806.08
  6. Step 6: Final answer
    x = 29,463.32

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1.5x scale

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.