Home / 81,169.05-112,018.50-45,359.22

Finding the Fourth Proportional to 81,169.05, 112,018.50 and 45,359.22

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Solution

The fourth proportional to 81,169.05, 112,018.50 and 45,359.22 is: 62,598.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,169.05 : 112,018.50 = 45,359.22 : x
  2. Step 2: Convert to fraction form
    81,169.05/112,018.50 = 45,359.22/x
  3. Step 3: Cross multiply
    81,169.05x = 112,018.50 × 45,359.22
  4. Step 4: Simplify right side
    81,169.05x = 5,081,071,785.57
  5. Step 5: Solve for x
    x = 5,081,071,785.57/81,169.05
  6. Step 6: Final answer
    x = 62,598.64

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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.