Home / 115,620.17-173,409.77-31,386.87

Finding the Fourth Proportional to 115,620.17, 173,409.77 and 31,386.87

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Solution

The fourth proportional to 115,620.17, 173,409.77 and 31,386.87 is: 47,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,620.17 : 173,409.77 = 31,386.87 : x
  2. Step 2: Convert to fraction form
    115,620.17/173,409.77 = 31,386.87/x
  3. Step 3: Cross multiply
    115,620.17x = 173,409.77 × 31,386.87
  4. Step 4: Simplify right side
    115,620.17x = 5,442,789,986.19
  5. Step 5: Solve for x
    x = 5,442,789,986.19/115,620.17
  6. Step 6: Final answer
    x = 47,074.75

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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.