Home / 73,015.19-100,725.81-42,781.73

Finding the Fourth Proportional to 73,015.19, 100,725.81 and 42,781.73

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Solution

The fourth proportional to 73,015.19, 100,725.81 and 42,781.73 is: 59,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,015.19 : 100,725.81 = 42,781.73 : x
  2. Step 2: Convert to fraction form
    73,015.19/100,725.81 = 42,781.73/x
  3. Step 3: Cross multiply
    73,015.19x = 100,725.81 × 42,781.73
  4. Step 4: Simplify right side
    73,015.19x = 4,309,224,407.45
  5. Step 5: Solve for x
    x = 4,309,224,407.45/73,015.19
  6. Step 6: Final answer
    x = 59,018.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.