Home / 81,657.06-112,699.13-49,844.45

Finding the Fourth Proportional to 81,657.06, 112,699.13 and 49,844.45

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Solution

The fourth proportional to 81,657.06, 112,699.13 and 49,844.45 is: 68,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,657.06 : 112,699.13 = 49,844.45 : x
  2. Step 2: Convert to fraction form
    81,657.06/112,699.13 = 49,844.45/x
  3. Step 3: Cross multiply
    81,657.06x = 112,699.13 × 49,844.45
  4. Step 4: Simplify right side
    81,657.06x = 5,617,426,150.33
  5. Step 5: Solve for x
    x = 5,617,426,150.33/81,657.06
  6. Step 6: Final answer
    x = 68,792.90

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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.