Home / 68,856.16-95,012.36-38,640.32

Finding the Fourth Proportional to 68,856.16, 95,012.36 and 38,640.32

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Solution

The fourth proportional to 68,856.16, 95,012.36 and 38,640.32 is: 53,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,856.16 : 95,012.36 = 38,640.32 : x
  2. Step 2: Convert to fraction form
    68,856.16/95,012.36 = 38,640.32/x
  3. Step 3: Cross multiply
    68,856.16x = 95,012.36 × 38,640.32
  4. Step 4: Simplify right side
    68,856.16x = 3,671,307,994.36
  5. Step 5: Solve for x
    x = 3,671,307,994.36/68,856.16
  6. Step 6: Final answer
    x = 53,318.51

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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.