Home / 65,818.91-90,801.24-38,581.19

Finding the Fourth Proportional to 65,818.91, 90,801.24 and 38,581.19

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Solution

The fourth proportional to 65,818.91, 90,801.24 and 38,581.19 is: 53,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,818.91 : 90,801.24 = 38,581.19 : x
  2. Step 2: Convert to fraction form
    65,818.91/90,801.24 = 38,581.19/x
  3. Step 3: Cross multiply
    65,818.91x = 90,801.24 × 38,581.19
  4. Step 4: Simplify right side
    65,818.91x = 3,503,219,892.68
  5. Step 5: Solve for x
    x = 3,503,219,892.68/65,818.91
  6. Step 6: Final answer
    x = 53,225.13

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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.