Home / 75,663.22-113,490.51-28,920.82

Finding the Fourth Proportional to 75,663.22, 113,490.51 and 28,920.82

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Solution

The fourth proportional to 75,663.22, 113,490.51 and 28,920.82 is: 43,379.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,663.22 : 113,490.51 = 28,920.82 : x
  2. Step 2: Convert to fraction form
    75,663.22/113,490.51 = 28,920.82/x
  3. Step 3: Cross multiply
    75,663.22x = 113,490.51 × 28,920.82
  4. Step 4: Simplify right side
    75,663.22x = 3,282,238,611.42
  5. Step 5: Solve for x
    x = 3,282,238,611.42/75,663.22
  6. Step 6: Final answer
    x = 43,379.58

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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.