Home / 92,045.72-138,070.30-28,864.46

Finding the Fourth Proportional to 92,045.72, 138,070.30 and 28,864.46

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Solution

The fourth proportional to 92,045.72, 138,070.30 and 28,864.46 is: 43,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,045.72 : 138,070.30 = 28,864.46 : x
  2. Step 2: Convert to fraction form
    92,045.72/138,070.30 = 28,864.46/x
  3. Step 3: Cross multiply
    92,045.72x = 138,070.30 × 28,864.46
  4. Step 4: Simplify right side
    92,045.72x = 3,985,324,651.54
  5. Step 5: Solve for x
    x = 3,985,324,651.54/92,045.72
  6. Step 6: Final answer
    x = 43,297.23

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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.