Home / 65,459.95-90,331.30-36,780.75

Finding the Fourth Proportional to 65,459.95, 90,331.30 and 36,780.75

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Solution

The fourth proportional to 65,459.95, 90,331.30 and 36,780.75 is: 50,755.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,459.95 : 90,331.30 = 36,780.75 : x
  2. Step 2: Convert to fraction form
    65,459.95/90,331.30 = 36,780.75/x
  3. Step 3: Cross multiply
    65,459.95x = 90,331.30 × 36,780.75
  4. Step 4: Simplify right side
    65,459.95x = 3,322,453,008.45
  5. Step 5: Solve for x
    x = 3,322,453,008.45/65,459.95
  6. Step 6: Final answer
    x = 50,755.51

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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.