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Finding the Fourth Proportional to 65,339.60, 90,166.10 and 37,046.30

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Solution

The fourth proportional to 65,339.60, 90,166.10 and 37,046.30 is: 51,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,339.60 : 90,166.10 = 37,046.30 : x
  2. Step 2: Convert to fraction form
    65,339.60/90,166.10 = 37,046.30/x
  3. Step 3: Cross multiply
    65,339.60x = 90,166.10 × 37,046.30
  4. Step 4: Simplify right side
    65,339.60x = 3,340,320,390.43
  5. Step 5: Solve for x
    x = 3,340,320,390.43/65,339.60
  6. Step 6: Final answer
    x = 51,122.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.