Home / 75,307.32-112,960.44-18,380.52

Finding the Fourth Proportional to 75,307.32, 112,960.44 and 18,380.52

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Solution

The fourth proportional to 75,307.32, 112,960.44 and 18,380.52 is: 27,570.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,307.32 : 112,960.44 = 18,380.52 : x
  2. Step 2: Convert to fraction form
    75,307.32/112,960.44 = 18,380.52/x
  3. Step 3: Cross multiply
    75,307.32x = 112,960.44 × 18,380.52
  4. Step 4: Simplify right side
    75,307.32x = 2,076,271,626.63
  5. Step 5: Solve for x
    x = 2,076,271,626.63/75,307.32
  6. Step 6: Final answer
    x = 27,570.65

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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.