Home / 92,170.03-138,256.86-28,988.81

Finding the Fourth Proportional to 92,170.03, 138,256.86 and 28,988.81

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Solution

The fourth proportional to 92,170.03, 138,256.86 and 28,988.81 is: 43,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,170.03 : 138,256.86 = 28,988.81 : x
  2. Step 2: Convert to fraction form
    92,170.03/138,256.86 = 28,988.81/x
  3. Step 3: Cross multiply
    92,170.03x = 138,256.86 × 28,988.81
  4. Step 4: Simplify right side
    92,170.03x = 4,007,901,845.74
  5. Step 5: Solve for x
    x = 4,007,901,845.74/92,170.03
  6. Step 6: Final answer
    x = 43,483.79

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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.