Home / 81,807.56-112,891.52-45,999.62

Finding the Fourth Proportional to 81,807.56, 112,891.52 and 45,999.62

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Solution

The fourth proportional to 81,807.56, 112,891.52 and 45,999.62 is: 63,477.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,807.56 : 112,891.52 = 45,999.62 : x
  2. Step 2: Convert to fraction form
    81,807.56/112,891.52 = 45,999.62/x
  3. Step 3: Cross multiply
    81,807.56x = 112,891.52 × 45,999.62
  4. Step 4: Simplify right side
    81,807.56x = 5,192,967,021.22
  5. Step 5: Solve for x
    x = 5,192,967,021.22/81,807.56
  6. Step 6: Final answer
    x = 63,477.84

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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.