Home / 81,048.83-121,573.11-45,048.18

Finding the Fourth Proportional to 81,048.83, 121,573.11 and 45,048.18

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Solution

The fourth proportional to 81,048.83, 121,573.11 and 45,048.18 is: 67,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,048.83 : 121,573.11 = 45,048.18 : x
  2. Step 2: Convert to fraction form
    81,048.83/121,573.11 = 45,048.18/x
  3. Step 3: Cross multiply
    81,048.83x = 121,573.11 × 45,048.18
  4. Step 4: Simplify right side
    81,048.83x = 5,476,646,734.57
  5. Step 5: Solve for x
    x = 5,476,646,734.57/81,048.83
  6. Step 6: Final answer
    x = 67,572.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.