Home / 40,748.40-61,122.60-30,906.90

Finding the Fourth Proportional to 40,748.40, 61,122.60 and 30,906.90

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Solution

The fourth proportional to 40,748.40, 61,122.60 and 30,906.90 is: 46,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,748.40 : 61,122.60 = 30,906.90 : x
  2. Step 2: Convert to fraction form
    40,748.40/61,122.60 = 30,906.90/x
  3. Step 3: Cross multiply
    40,748.40x = 61,122.60 × 30,906.90
  4. Step 4: Simplify right side
    40,748.40x = 1,889,110,085.94
  5. Step 5: Solve for x
    x = 1,889,110,085.94/40,748.40
  6. Step 6: Final answer
    x = 46,360.35

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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.