Home / 76,919.06-106,153.64-42,934.18

Finding the Fourth Proportional to 76,919.06, 106,153.64 and 42,934.18

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Solution

The fourth proportional to 76,919.06, 106,153.64 and 42,934.18 is: 59,252.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,919.06 : 106,153.64 = 42,934.18 : x
  2. Step 2: Convert to fraction form
    76,919.06/106,153.64 = 42,934.18/x
  3. Step 3: Cross multiply
    76,919.06x = 106,153.64 × 42,934.18
  4. Step 4: Simplify right side
    76,919.06x = 4,557,619,272.74
  5. Step 5: Solve for x
    x = 4,557,619,272.74/76,919.06
  6. Step 6: Final answer
    x = 59,252.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.