Home / 50,004.20-74,948.70-20,407.40

Finding the Fourth Proportional to 50,004.20, 74,948.70 and 20,407.40

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Solution

The fourth proportional to 50,004.20, 74,948.70 and 20,407.40 is: 30,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,004.20 : 74,948.70 = 20,407.40 : x
  2. Step 2: Convert to fraction form
    50,004.20/74,948.70 = 20,407.40/x
  3. Step 3: Cross multiply
    50,004.20x = 74,948.70 × 20,407.40
  4. Step 4: Simplify right side
    50,004.20x = 1,529,508,100.38
  5. Step 5: Solve for x
    x = 1,529,508,100.38/50,004.20
  6. Step 6: Final answer
    x = 30,587.59

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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.