Home / 53,715.52-80,561.13-20,423.71

Finding the Fourth Proportional to 53,715.52, 80,561.13 and 20,423.71

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Solution

The fourth proportional to 53,715.52, 80,561.13 and 20,423.71 is: 30,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,715.52 : 80,561.13 = 20,423.71 : x
  2. Step 2: Convert to fraction form
    53,715.52/80,561.13 = 20,423.71/x
  3. Step 3: Cross multiply
    53,715.52x = 80,561.13 × 20,423.71
  4. Step 4: Simplify right side
    53,715.52x = 1,645,357,156.39
  5. Step 5: Solve for x
    x = 1,645,357,156.39/53,715.52
  6. Step 6: Final answer
    x = 30,630.95

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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.