Home / 65,742.18-90,718.73-36,668.75

Finding the Fourth Proportional to 65,742.18, 90,718.73 and 36,668.75

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Solution

The fourth proportional to 65,742.18, 90,718.73 and 36,668.75 is: 50,599.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,742.18 : 90,718.73 = 36,668.75 : x
  2. Step 2: Convert to fraction form
    65,742.18/90,718.73 = 36,668.75/x
  3. Step 3: Cross multiply
    65,742.18x = 90,718.73 × 36,668.75
  4. Step 4: Simplify right side
    65,742.18x = 3,326,542,647.81
  5. Step 5: Solve for x
    x = 3,326,542,647.81/65,742.18
  6. Step 6: Final answer
    x = 50,599.82

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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.