Home / 75,308.80-103,992.24-47,062.72

Finding the Fourth Proportional to 75,308.80, 103,992.24 and 47,062.72

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Solution

The fourth proportional to 75,308.80, 103,992.24 and 47,062.72 is: 64,987.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,308.80 : 103,992.24 = 47,062.72 : x
  2. Step 2: Convert to fraction form
    75,308.80/103,992.24 = 47,062.72/x
  3. Step 3: Cross multiply
    75,308.80x = 103,992.24 × 47,062.72
  4. Step 4: Simplify right side
    75,308.80x = 4,894,157,673.29
  5. Step 5: Solve for x
    x = 4,894,157,673.29/75,308.80
  6. Step 6: Final answer
    x = 64,987.86

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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.