Home / 90,796.78-136,308.57-61,345.18

Finding the Fourth Proportional to 90,796.78, 136,308.57 and 61,345.18

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Solution

The fourth proportional to 90,796.78, 136,308.57 and 61,345.18 is: 92,094.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,796.78 : 136,308.57 = 61,345.18 : x
  2. Step 2: Convert to fraction form
    90,796.78/136,308.57 = 61,345.18/x
  3. Step 3: Cross multiply
    90,796.78x = 136,308.57 × 61,345.18
  4. Step 4: Simplify right side
    90,796.78x = 8,361,873,762.19
  5. Step 5: Solve for x
    x = 8,361,873,762.19/90,796.78
  6. Step 6: Final answer
    x = 92,094.39

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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.