Home / 83,120.36-124,696.80-30,530.24

Finding the Fourth Proportional to 83,120.36, 124,696.80 and 30,530.24

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Solution

The fourth proportional to 83,120.36, 124,696.80 and 30,530.24 is: 45,801.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,120.36 : 124,696.80 = 30,530.24 : x
  2. Step 2: Convert to fraction form
    83,120.36/124,696.80 = 30,530.24/x
  3. Step 3: Cross multiply
    83,120.36x = 124,696.80 × 30,530.24
  4. Step 4: Simplify right side
    83,120.36x = 3,807,023,231.23
  5. Step 5: Solve for x
    x = 3,807,023,231.23/83,120.36
  6. Step 6: Final answer
    x = 45,801.33

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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.