Home / 65,119.19-89,849.99-39,638.82

Finding the Fourth Proportional to 65,119.19, 89,849.99 and 39,638.82

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Solution

The fourth proportional to 65,119.19, 89,849.99 and 39,638.82 is: 54,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,119.19 : 89,849.99 = 39,638.82 : x
  2. Step 2: Convert to fraction form
    65,119.19/89,849.99 = 39,638.82/x
  3. Step 3: Cross multiply
    65,119.19x = 89,849.99 × 39,638.82
  4. Step 4: Simplify right side
    65,119.19x = 3,561,547,382.42
  5. Step 5: Solve for x
    x = 3,561,547,382.42/65,119.19
  6. Step 6: Final answer
    x = 54,692.75

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1.5x scale

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.