Home / 86,981.92-120,033.02-51,174.24

Finding the Fourth Proportional to 86,981.92, 120,033.02 and 51,174.24

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Solution

The fourth proportional to 86,981.92, 120,033.02 and 51,174.24 is: 70,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,981.92 : 120,033.02 = 51,174.24 : x
  2. Step 2: Convert to fraction form
    86,981.92/120,033.02 = 51,174.24/x
  3. Step 3: Cross multiply
    86,981.92x = 120,033.02 × 51,174.24
  4. Step 4: Simplify right side
    86,981.92x = 6,142,597,963.36
  5. Step 5: Solve for x
    x = 6,142,597,963.36/86,981.92
  6. Step 6: Final answer
    x = 70,619.25

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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.