Home / 83,407.06-125,111.40-21,077.56

Finding the Fourth Proportional to 83,407.06, 125,111.40 and 21,077.56

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Solution

The fourth proportional to 83,407.06, 125,111.40 and 21,077.56 is: 31,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,407.06 : 125,111.40 = 21,077.56 : x
  2. Step 2: Convert to fraction form
    83,407.06/125,111.40 = 21,077.56/x
  3. Step 3: Cross multiply
    83,407.06x = 125,111.40 × 21,077.56
  4. Step 4: Simplify right side
    83,407.06x = 2,637,043,040.18
  5. Step 5: Solve for x
    x = 2,637,043,040.18/83,407.06
  6. Step 6: Final answer
    x = 31,616.54

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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.