Home / 115,881.60-173,825.64-40,991.16

Finding the Fourth Proportional to 115,881.60, 173,825.64 and 40,991.16

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Solution

The fourth proportional to 115,881.60, 173,825.64 and 40,991.16 is: 61,487.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,881.60 : 173,825.64 = 40,991.16 : x
  2. Step 2: Convert to fraction form
    115,881.60/173,825.64 = 40,991.16/x
  3. Step 3: Cross multiply
    115,881.60x = 173,825.64 × 40,991.16
  4. Step 4: Simplify right side
    115,881.60x = 7,125,314,621.34
  5. Step 5: Solve for x
    x = 7,125,314,621.34/115,881.60
  6. Step 6: Final answer
    x = 61,487.89

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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.