Home / 91,070.11-136,522.46-31,873.48

Finding the Fourth Proportional to 91,070.11, 136,522.46 and 31,873.48

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Solution

The fourth proportional to 91,070.11, 136,522.46 and 31,873.48 is: 47,781.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,070.11 : 136,522.46 = 31,873.48 : x
  2. Step 2: Convert to fraction form
    91,070.11/136,522.46 = 31,873.48/x
  3. Step 3: Cross multiply
    91,070.11x = 136,522.46 × 31,873.48
  4. Step 4: Simplify right side
    91,070.11x = 4,351,445,898.36
  5. Step 5: Solve for x
    x = 4,351,445,898.36/91,070.11
  6. Step 6: Final answer
    x = 47,781.27

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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.