Home / 89,197.28-133,815.64-30,031

Finding the Fourth Proportional to 89,197.28, 133,815.64 and 30,031

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Solution

The fourth proportional to 89,197.28, 133,815.64 and 30,031 is: 45,053.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,197.28 : 133,815.64 = 30,031 : x
  2. Step 2: Convert to fraction form
    89,197.28/133,815.64 = 30,031/x
  3. Step 3: Cross multiply
    89,197.28x = 133,815.64 × 30,031
  4. Step 4: Simplify right side
    89,197.28x = 4,018,617,484.84
  5. Step 5: Solve for x
    x = 4,018,617,484.84/89,197.28
  6. Step 6: Final answer
    x = 45,053.14

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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.