Home / 81,169.77-112,012.20-45,360.07

Finding the Fourth Proportional to 81,169.77, 112,012.20 and 45,360.07

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Solution

The fourth proportional to 81,169.77, 112,012.20 and 45,360.07 is: 62,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,169.77 : 112,012.20 = 45,360.07 : x
  2. Step 2: Convert to fraction form
    81,169.77/112,012.20 = 45,360.07/x
  3. Step 3: Cross multiply
    81,169.77x = 112,012.20 × 45,360.07
  4. Step 4: Simplify right side
    81,169.77x = 5,080,881,232.85
  5. Step 5: Solve for x
    x = 5,080,881,232.85/81,169.77
  6. Step 6: Final answer
    x = 62,595.73

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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.