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Finding the Fourth Proportional to 60,223.23, 90,341 and 20,780.23

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Solution

The fourth proportional to 60,223.23, 90,341 and 20,780.23 is: 31,172.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,223.23 : 90,341 = 20,780.23 : x
  2. Step 2: Convert to fraction form
    60,223.23/90,341 = 20,780.23/x
  3. Step 3: Cross multiply
    60,223.23x = 90,341 × 20,780.23
  4. Step 4: Simplify right side
    60,223.23x = 1,877,306,758.43
  5. Step 5: Solve for x
    x = 1,877,306,758.43/60,223.23
  6. Step 6: Final answer
    x = 31,172.47

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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.