Home / 53,516.79-80,291.38-20,247.05

Finding the Fourth Proportional to 53,516.79, 80,291.38 and 20,247.05

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Solution

The fourth proportional to 53,516.79, 80,291.38 and 20,247.05 is: 30,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,516.79 : 80,291.38 = 20,247.05 : x
  2. Step 2: Convert to fraction form
    53,516.79/80,291.38 = 20,247.05/x
  3. Step 3: Cross multiply
    53,516.79x = 80,291.38 × 20,247.05
  4. Step 4: Simplify right side
    53,516.79x = 1,625,663,585.43
  5. Step 5: Solve for x
    x = 1,625,663,585.43/53,516.79
  6. Step 6: Final answer
    x = 30,376.70

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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.