Home / 85,191.68-117,565.00-49,402.94

Finding the Fourth Proportional to 85,191.68, 117,565.00 and 49,402.94

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Solution

The fourth proportional to 85,191.68, 117,565.00 and 49,402.94 is: 68,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,191.68 : 117,565.00 = 49,402.94 : x
  2. Step 2: Convert to fraction form
    85,191.68/117,565.00 = 49,402.94/x
  3. Step 3: Cross multiply
    85,191.68x = 117,565.00 × 49,402.94
  4. Step 4: Simplify right side
    85,191.68x = 5,808,055,929.77
  5. Step 5: Solve for x
    x = 5,808,055,929.77/85,191.68
  6. Step 6: Final answer
    x = 68,176.33

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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.