Home / 85,523.04-128,284.20-23,193.72

Finding the Fourth Proportional to 85,523.04, 128,284.20 and 23,193.72

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Solution

The fourth proportional to 85,523.04, 128,284.20 and 23,193.72 is: 34,790.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,523.04 : 128,284.20 = 23,193.72 : x
  2. Step 2: Convert to fraction form
    85,523.04/128,284.20 = 23,193.72/x
  3. Step 3: Cross multiply
    85,523.04x = 128,284.20 × 23,193.72
  4. Step 4: Simplify right side
    85,523.04x = 2,975,387,815.22
  5. Step 5: Solve for x
    x = 2,975,387,815.22/85,523.04
  6. Step 6: Final answer
    x = 34,790.48

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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.