Home / 65,653.12-98,479.68-30,617.28

Finding the Fourth Proportional to 65,653.12, 98,479.68 and 30,617.28

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Solution

The fourth proportional to 65,653.12, 98,479.68 and 30,617.28 is: 45,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,653.12 : 98,479.68 = 30,617.28 : x
  2. Step 2: Convert to fraction form
    65,653.12/98,479.68 = 30,617.28/x
  3. Step 3: Cross multiply
    65,653.12x = 98,479.68 × 30,617.28
  4. Step 4: Simplify right side
    65,653.12x = 3,015,179,936.87
  5. Step 5: Solve for x
    x = 3,015,179,936.87/65,653.12
  6. Step 6: Final answer
    x = 45,925.92

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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.