Home / 49,935.60-74,806.20-30,155.40

Finding the Fourth Proportional to 49,935.60, 74,806.20 and 30,155.40

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Solution

The fourth proportional to 49,935.60, 74,806.20 and 30,155.40 is: 45,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,935.60 : 74,806.20 = 30,155.40 : x
  2. Step 2: Convert to fraction form
    49,935.60/74,806.20 = 30,155.40/x
  3. Step 3: Cross multiply
    49,935.60x = 74,806.20 × 30,155.40
  4. Step 4: Simplify right side
    49,935.60x = 2,255,810,883.48
  5. Step 5: Solve for x
    x = 2,255,810,883.48/49,935.60
  6. Step 6: Final answer
    x = 45,174.40

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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.