Home / 90,875.81-136,297.31-27,680.82

Finding the Fourth Proportional to 90,875.81, 136,297.31 and 27,680.82

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Solution

The fourth proportional to 90,875.81, 136,297.31 and 27,680.82 is: 41,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,875.81 : 136,297.31 = 27,680.82 : x
  2. Step 2: Convert to fraction form
    90,875.81/136,297.31 = 27,680.82/x
  3. Step 3: Cross multiply
    90,875.81x = 136,297.31 × 27,680.82
  4. Step 4: Simplify right side
    90,875.81x = 3,772,821,166.19
  5. Step 5: Solve for x
    x = 3,772,821,166.19/90,875.81
  6. Step 6: Final answer
    x = 41,516.23

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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.