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Finding the Fourth Proportional to 60,063.86, 90,097.97 and 20,620.74

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Solution

The fourth proportional to 60,063.86, 90,097.97 and 20,620.74 is: 30,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,063.86 : 90,097.97 = 20,620.74 : x
  2. Step 2: Convert to fraction form
    60,063.86/90,097.97 = 20,620.74/x
  3. Step 3: Cross multiply
    60,063.86x = 90,097.97 × 20,620.74
  4. Step 4: Simplify right side
    60,063.86x = 1,857,886,813.90
  5. Step 5: Solve for x
    x = 1,857,886,813.90/60,063.86
  6. Step 6: Final answer
    x = 30,931.86

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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.