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Finding the Fourth Proportional to 92,130.09, 138,107.65 and 36,006.20

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Solution

The fourth proportional to 92,130.09, 138,107.65 and 36,006.20 is: 53,975.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,130.09 : 138,107.65 = 36,006.20 : x
  2. Step 2: Convert to fraction form
    92,130.09/138,107.65 = 36,006.20/x
  3. Step 3: Cross multiply
    92,130.09x = 138,107.65 × 36,006.20
  4. Step 4: Simplify right side
    92,130.09x = 4,972,731,667.43
  5. Step 5: Solve for x
    x = 4,972,731,667.43/92,130.09
  6. Step 6: Final answer
    x = 53,975.11

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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.