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Finding the Fourth Proportional to 92,059.57, 138,091.03 and 28,878.36

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Solution

The fourth proportional to 92,059.57, 138,091.03 and 28,878.36 is: 43,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,059.57 : 138,091.03 = 28,878.36 : x
  2. Step 2: Convert to fraction form
    92,059.57/138,091.03 = 28,878.36/x
  3. Step 3: Cross multiply
    92,059.57x = 138,091.03 × 28,878.36
  4. Step 4: Simplify right side
    92,059.57x = 3,987,841,887.07
  5. Step 5: Solve for x
    x = 3,987,841,887.07/92,059.57
  6. Step 6: Final answer
    x = 43,318.06

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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.