Home / 81,656.91-112,698.74-49,844.16

Finding the Fourth Proportional to 81,656.91, 112,698.74 and 49,844.16

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Solution

The fourth proportional to 81,656.91, 112,698.74 and 49,844.16 is: 68,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,656.91 : 112,698.74 = 49,844.16 : x
  2. Step 2: Convert to fraction form
    81,656.91/112,698.74 = 49,844.16/x
  3. Step 3: Cross multiply
    81,656.91x = 112,698.74 × 49,844.16
  4. Step 4: Simplify right side
    81,656.91x = 5,617,374,152.97
  5. Step 5: Solve for x
    x = 5,617,374,152.97/81,656.91
  6. Step 6: Final answer
    x = 68,792.39

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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.