Home / 89,642.19-134,379.75-30,437.37

Finding the Fourth Proportional to 89,642.19, 134,379.75 and 30,437.37

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Solution

The fourth proportional to 89,642.19, 134,379.75 and 30,437.37 is: 45,627.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,642.19 : 134,379.75 = 30,437.37 : x
  2. Step 2: Convert to fraction form
    89,642.19/134,379.75 = 30,437.37/x
  3. Step 3: Cross multiply
    89,642.19x = 134,379.75 × 30,437.37
  4. Step 4: Simplify right side
    89,642.19x = 4,090,165,781.47
  5. Step 5: Solve for x
    x = 4,090,165,781.47/89,642.19
  6. Step 6: Final answer
    x = 45,627.69

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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.