Home / 65,811.08-90,819.14-36,003.08

Finding the Fourth Proportional to 65,811.08, 90,819.14 and 36,003.08

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Solution

The fourth proportional to 65,811.08, 90,819.14 and 36,003.08 is: 49,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,811.08 : 90,819.14 = 36,003.08 : x
  2. Step 2: Convert to fraction form
    65,811.08/90,819.14 = 36,003.08/x
  3. Step 3: Cross multiply
    65,811.08x = 90,819.14 × 36,003.08
  4. Step 4: Simplify right side
    65,811.08x = 3,269,768,762.95
  5. Step 5: Solve for x
    x = 3,269,768,762.95/65,811.08
  6. Step 6: Final answer
    x = 49,684.17

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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.