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Finding the Fourth Proportional to 92,070.98, 138,112.30 and 28,893.59

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Solution

The fourth proportional to 92,070.98, 138,112.30 and 28,893.59 is: 43,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,070.98 : 138,112.30 = 28,893.59 : x
  2. Step 2: Convert to fraction form
    92,070.98/138,112.30 = 28,893.59/x
  3. Step 3: Cross multiply
    92,070.98x = 138,112.30 × 28,893.59
  4. Step 4: Simplify right side
    92,070.98x = 3,990,560,170.16
  5. Step 5: Solve for x
    x = 3,990,560,170.16/92,070.98
  6. Step 6: Final answer
    x = 43,342.22

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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.