Home / 81,392.04-122,068.94-22,213.62

Finding the Fourth Proportional to 81,392.04, 122,068.94 and 22,213.62

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Solution

The fourth proportional to 81,392.04, 122,068.94 and 22,213.62 is: 33,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,392.04 : 122,068.94 = 22,213.62 : x
  2. Step 2: Convert to fraction form
    81,392.04/122,068.94 = 22,213.62/x
  3. Step 3: Cross multiply
    81,392.04x = 122,068.94 × 22,213.62
  4. Step 4: Simplify right side
    81,392.04x = 2,711,592,935.89
  5. Step 5: Solve for x
    x = 2,711,592,935.89/81,392.04
  6. Step 6: Final answer
    x = 33,315.21

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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.