Home / 115,879.60-173,822.64-40,989.16

Finding the Fourth Proportional to 115,879.60, 173,822.64 and 40,989.16

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Solution

The fourth proportional to 115,879.60, 173,822.64 and 40,989.16 is: 61,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,879.60 : 173,822.64 = 40,989.16 : x
  2. Step 2: Convert to fraction form
    115,879.60/173,822.64 = 40,989.16/x
  3. Step 3: Cross multiply
    115,879.60x = 173,822.64 × 40,989.16
  4. Step 4: Simplify right side
    115,879.60x = 7,124,844,002.58
  5. Step 5: Solve for x
    x = 7,124,844,002.58/115,879.60
  6. Step 6: Final answer
    x = 61,484.89

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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.