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Finding the Fourth Proportional to 92,130.40, 138,195.60 and 32,970.70

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Solution

The fourth proportional to 92,130.40, 138,195.60 and 32,970.70 is: 49,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,130.40 : 138,195.60 = 32,970.70 : x
  2. Step 2: Convert to fraction form
    92,130.40/138,195.60 = 32,970.70/x
  3. Step 3: Cross multiply
    92,130.40x = 138,195.60 × 32,970.70
  4. Step 4: Simplify right side
    92,130.40x = 4,556,405,668.92
  5. Step 5: Solve for x
    x = 4,556,405,668.92/92,130.40
  6. Step 6: Final answer
    x = 49,456.05

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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.