Home / 49,425.60-74,138.40-18,256.80

Finding the Fourth Proportional to 49,425.60, 74,138.40 and 18,256.80

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Solution

The fourth proportional to 49,425.60, 74,138.40 and 18,256.80 is: 27,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,425.60 : 74,138.40 = 18,256.80 : x
  2. Step 2: Convert to fraction form
    49,425.60/74,138.40 = 18,256.80/x
  3. Step 3: Cross multiply
    49,425.60x = 74,138.40 × 18,256.80
  4. Step 4: Simplify right side
    49,425.60x = 1,353,529,941.12
  5. Step 5: Solve for x
    x = 1,353,529,941.12/49,425.60
  6. Step 6: Final answer
    x = 27,385.20

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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.