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Finding the Fourth Proportional to 92,012.36, 138,018.36 and 28,837.32

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Solution

The fourth proportional to 92,012.36, 138,018.36 and 28,837.32 is: 43,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,012.36 : 138,018.36 = 28,837.32 : x
  2. Step 2: Convert to fraction form
    92,012.36/138,018.36 = 28,837.32/x
  3. Step 3: Cross multiply
    92,012.36x = 138,018.36 × 28,837.32
  4. Step 4: Simplify right side
    92,012.36x = 3,980,079,613.20
  5. Step 5: Solve for x
    x = 3,980,079,613.20/92,012.36
  6. Step 6: Final answer
    x = 43,255.92

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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.