Home / 78,568.32-117,528.48-50,445.12

Finding the Fourth Proportional to 78,568.32, 117,528.48 and 50,445.12

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Solution

The fourth proportional to 78,568.32, 117,528.48 and 50,445.12 is: 75,459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,568.32 : 117,528.48 = 50,445.12 : x
  2. Step 2: Convert to fraction form
    78,568.32/117,528.48 = 50,445.12/x
  3. Step 3: Cross multiply
    78,568.32x = 117,528.48 × 50,445.12
  4. Step 4: Simplify right side
    78,568.32x = 5,928,738,277.02
  5. Step 5: Solve for x
    x = 5,928,738,277.02/78,568.32
  6. Step 6: Final answer
    x = 75,459.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.