Home / 90,696.36-136,090.62-40,766.40

Finding the Fourth Proportional to 90,696.36, 136,090.62 and 40,766.40

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Solution

The fourth proportional to 90,696.36, 136,090.62 and 40,766.40 is: 61,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,696.36 : 136,090.62 = 40,766.40 : x
  2. Step 2: Convert to fraction form
    90,696.36/136,090.62 = 40,766.40/x
  3. Step 3: Cross multiply
    90,696.36x = 136,090.62 × 40,766.40
  4. Step 4: Simplify right side
    90,696.36x = 5,547,924,651.17
  5. Step 5: Solve for x
    x = 5,547,924,651.17/90,696.36
  6. Step 6: Final answer
    x = 61,170.31

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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.