Home / 89,820.93-134,694.32-30,661.36

Finding the Fourth Proportional to 89,820.93, 134,694.32 and 30,661.36

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Solution

The fourth proportional to 89,820.93, 134,694.32 and 30,661.36 is: 45,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,820.93 : 134,694.32 = 30,661.36 : x
  2. Step 2: Convert to fraction form
    89,820.93/134,694.32 = 30,661.36/x
  3. Step 3: Cross multiply
    89,820.93x = 134,694.32 × 30,661.36
  4. Step 4: Simplify right side
    89,820.93x = 4,129,911,448.86
  5. Step 5: Solve for x
    x = 4,129,911,448.86/89,820.93
  6. Step 6: Final answer
    x = 45,979.39

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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.