Home / 92,290.86-138,339.09-47,870.46

Finding the Fourth Proportional to 92,290.86, 138,339.09 and 47,870.46

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Solution

The fourth proportional to 92,290.86, 138,339.09 and 47,870.46 is: 71,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,290.86 : 138,339.09 = 47,870.46 : x
  2. Step 2: Convert to fraction form
    92,290.86/138,339.09 = 47,870.46/x
  3. Step 3: Cross multiply
    92,290.86x = 138,339.09 × 47,870.46
  4. Step 4: Simplify right side
    92,290.86x = 6,622,355,874.28
  5. Step 5: Solve for x
    x = 6,622,355,874.28/92,290.86
  6. Step 6: Final answer
    x = 71,755.27

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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.