Home / 74,115.04-111,172.80-17,955.04

Finding the Fourth Proportional to 74,115.04, 111,172.80 and 17,955.04

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Solution

The fourth proportional to 74,115.04, 111,172.80 and 17,955.04 is: 26,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,115.04 : 111,172.80 = 17,955.04 : x
  2. Step 2: Convert to fraction form
    74,115.04/111,172.80 = 17,955.04/x
  3. Step 3: Cross multiply
    74,115.04x = 111,172.80 × 17,955.04
  4. Step 4: Simplify right side
    74,115.04x = 1,996,112,070.91
  5. Step 5: Solve for x
    x = 1,996,112,070.91/74,115.04
  6. Step 6: Final answer
    x = 26,932.62

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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.