Home / 100,553.28-150,854.04-30,428.16

Finding the Fourth Proportional to 100,553.28, 150,854.04 and 30,428.16

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Solution

The fourth proportional to 100,553.28, 150,854.04 and 30,428.16 is: 45,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,553.28 : 150,854.04 = 30,428.16 : x
  2. Step 2: Convert to fraction form
    100,553.28/150,854.04 = 30,428.16/x
  3. Step 3: Cross multiply
    100,553.28x = 150,854.04 × 30,428.16
  4. Step 4: Simplify right side
    100,553.28x = 4,590,210,865.77
  5. Step 5: Solve for x
    x = 4,590,210,865.77/100,553.28
  6. Step 6: Final answer
    x = 45,649.54

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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.