Home / 92,645.10-138,860.37-42,620.22

Finding the Fourth Proportional to 92,645.10, 138,860.37 and 42,620.22

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Solution

The fourth proportional to 92,645.10, 138,860.37 and 42,620.22 is: 63,880.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,645.10 : 138,860.37 = 42,620.22 : x
  2. Step 2: Convert to fraction form
    92,645.10/138,860.37 = 42,620.22/x
  3. Step 3: Cross multiply
    92,645.10x = 138,860.37 × 42,620.22
  4. Step 4: Simplify right side
    92,645.10x = 5,918,259,518.68
  5. Step 5: Solve for x
    x = 5,918,259,518.68/92,645.10
  6. Step 6: Final answer
    x = 63,880.98

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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.