Home / 98,575.29-135,986.49-64,569.06

Finding the Fourth Proportional to 98,575.29, 135,986.49 and 64,569.06

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Solution

The fourth proportional to 98,575.29, 135,986.49 and 64,569.06 is: 89,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.29 : 135,986.49 = 64,569.06 : x
  2. Step 2: Convert to fraction form
    98,575.29/135,986.49 = 64,569.06/x
  3. Step 3: Cross multiply
    98,575.29x = 135,986.49 × 64,569.06
  4. Step 4: Simplify right side
    98,575.29x = 8,780,519,849.12
  5. Step 5: Solve for x
    x = 8,780,519,849.12/98,575.29
  6. Step 6: Final answer
    x = 89,074.25

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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.