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Finding the Fourth Proportional to 62,239.80, 93,359.70 and 20,119.80

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Solution

The fourth proportional to 62,239.80, 93,359.70 and 20,119.80 is: 30,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,239.80 : 93,359.70 = 20,119.80 : x
  2. Step 2: Convert to fraction form
    62,239.80/93,359.70 = 20,119.80/x
  3. Step 3: Cross multiply
    62,239.80x = 93,359.70 × 20,119.80
  4. Step 4: Simplify right side
    62,239.80x = 1,878,378,492.06
  5. Step 5: Solve for x
    x = 1,878,378,492.06/62,239.80
  6. Step 6: Final answer
    x = 30,179.70

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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.