Home / 83,329.06-124,994.40-20,999.56

Finding the Fourth Proportional to 83,329.06, 124,994.40 and 20,999.56

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Solution

The fourth proportional to 83,329.06, 124,994.40 and 20,999.56 is: 31,499.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,329.06 : 124,994.40 = 20,999.56 : x
  2. Step 2: Convert to fraction form
    83,329.06/124,994.40 = 20,999.56/x
  3. Step 3: Cross multiply
    83,329.06x = 124,994.40 × 20,999.56
  4. Step 4: Simplify right side
    83,329.06x = 2,624,827,402.46
  5. Step 5: Solve for x
    x = 2,624,827,402.46/83,329.06
  6. Step 6: Final answer
    x = 31,499.54

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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.