Home / 91,287.05-136,767.01-55,730.08

Finding the Fourth Proportional to 91,287.05, 136,767.01 and 55,730.08

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Solution

The fourth proportional to 91,287.05, 136,767.01 and 55,730.08 is: 83,495.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,287.05 : 136,767.01 = 55,730.08 : x
  2. Step 2: Convert to fraction form
    91,287.05/136,767.01 = 55,730.08/x
  3. Step 3: Cross multiply
    91,287.05x = 136,767.01 × 55,730.08
  4. Step 4: Simplify right side
    91,287.05x = 7,622,035,618.73
  5. Step 5: Solve for x
    x = 7,622,035,618.73/91,287.05
  6. Step 6: Final answer
    x = 83,495.26

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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.