Home / 67,121.15-92,531.75-53,388.81

Finding the Fourth Proportional to 67,121.15, 92,531.75 and 53,388.81

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Solution

The fourth proportional to 67,121.15, 92,531.75 and 53,388.81 is: 73,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,121.15 : 92,531.75 = 53,388.81 : x
  2. Step 2: Convert to fraction form
    67,121.15/92,531.75 = 53,388.81/x
  3. Step 3: Cross multiply
    67,121.15x = 92,531.75 × 53,388.81
  4. Step 4: Simplify right side
    67,121.15x = 4,940,159,752.77
  5. Step 5: Solve for x
    x = 4,940,159,752.77/67,121.15
  6. Step 6: Final answer
    x = 73,600.65

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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.