Home / 65,145.56-89,899.28-36,465.60

Finding the Fourth Proportional to 65,145.56, 89,899.28 and 36,465.60

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Solution

The fourth proportional to 65,145.56, 89,899.28 and 36,465.60 is: 50,321.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,145.56 : 89,899.28 = 36,465.60 : x
  2. Step 2: Convert to fraction form
    65,145.56/89,899.28 = 36,465.60/x
  3. Step 3: Cross multiply
    65,145.56x = 89,899.28 × 36,465.60
  4. Step 4: Simplify right side
    65,145.56x = 3,278,231,184.77
  5. Step 5: Solve for x
    x = 3,278,231,184.77/65,145.56
  6. Step 6: Final answer
    x = 50,321.64

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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.