Home / 90,969.23-136,480.16-37,651.35

Finding the Fourth Proportional to 90,969.23, 136,480.16 and 37,651.35

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Solution

The fourth proportional to 90,969.23, 136,480.16 and 37,651.35 is: 56,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,969.23 : 136,480.16 = 37,651.35 : x
  2. Step 2: Convert to fraction form
    90,969.23/136,480.16 = 37,651.35/x
  3. Step 3: Cross multiply
    90,969.23x = 136,480.16 × 37,651.35
  4. Step 4: Simplify right side
    90,969.23x = 5,138,661,898.66
  5. Step 5: Solve for x
    x = 5,138,661,898.66/90,969.23
  6. Step 6: Final answer
    x = 56,487.91

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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.