Home / 89,320.08-133,886.48-30,135.36

Finding the Fourth Proportional to 89,320.08, 133,886.48 and 30,135.36

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Solution

The fourth proportional to 89,320.08, 133,886.48 and 30,135.36 is: 45,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,320.08 : 133,886.48 = 30,135.36 : x
  2. Step 2: Convert to fraction form
    89,320.08/133,886.48 = 30,135.36/x
  3. Step 3: Cross multiply
    89,320.08x = 133,886.48 × 30,135.36
  4. Step 4: Simplify right side
    89,320.08x = 4,034,717,273.93
  5. Step 5: Solve for x
    x = 4,034,717,273.93/89,320.08
  6. Step 6: Final answer
    x = 45,171.45

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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.