Home / 40,906.80-61,360.20-30,538.80

Finding the Fourth Proportional to 40,906.80, 61,360.20 and 30,538.80

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Solution

The fourth proportional to 40,906.80, 61,360.20 and 30,538.80 is: 45,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,906.80 : 61,360.20 = 30,538.80 : x
  2. Step 2: Convert to fraction form
    40,906.80/61,360.20 = 30,538.80/x
  3. Step 3: Cross multiply
    40,906.80x = 61,360.20 × 30,538.80
  4. Step 4: Simplify right side
    40,906.80x = 1,873,866,875.76
  5. Step 5: Solve for x
    x = 1,873,866,875.76/40,906.80
  6. Step 6: Final answer
    x = 45,808.20

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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.