Home / 83,414.51-125,121.77-21,085.01

Finding the Fourth Proportional to 83,414.51, 125,121.77 and 21,085.01

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Solution

The fourth proportional to 83,414.51, 125,121.77 and 21,085.01 is: 31,627.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414.51 : 125,121.77 = 21,085.01 : x
  2. Step 2: Convert to fraction form
    83,414.51/125,121.77 = 21,085.01/x
  3. Step 3: Cross multiply
    83,414.51x = 125,121.77 × 21,085.01
  4. Step 4: Simplify right side
    83,414.51x = 2,638,193,666.24
  5. Step 5: Solve for x
    x = 2,638,193,666.24/83,414.51
  6. Step 6: Final answer
    x = 31,627.52

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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.