Home / 89,409.68-134,145.12-56,089.52

Finding the Fourth Proportional to 89,409.68, 134,145.12 and 56,089.52

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Solution

The fourth proportional to 89,409.68, 134,145.12 and 56,089.52 is: 84,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,409.68 : 134,145.12 = 56,089.52 : x
  2. Step 2: Convert to fraction form
    89,409.68/134,145.12 = 56,089.52/x
  3. Step 3: Cross multiply
    89,409.68x = 134,145.12 × 56,089.52
  4. Step 4: Simplify right side
    89,409.68x = 7,524,135,391.14
  5. Step 5: Solve for x
    x = 7,524,135,391.14/89,409.68
  6. Step 6: Final answer
    x = 84,153.48

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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.