Home / 54,659.08-75,423.18-30,785.32

Finding the Fourth Proportional to 54,659.08, 75,423.18 and 30,785.32

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Solution

The fourth proportional to 54,659.08, 75,423.18 and 30,785.32 is: 42,480.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,659.08 : 75,423.18 = 30,785.32 : x
  2. Step 2: Convert to fraction form
    54,659.08/75,423.18 = 30,785.32/x
  3. Step 3: Cross multiply
    54,659.08x = 75,423.18 × 30,785.32
  4. Step 4: Simplify right side
    54,659.08x = 2,321,926,731.72
  5. Step 5: Solve for x
    x = 2,321,926,731.72/54,659.08
  6. Step 6: Final answer
    x = 42,480.16

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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.