Home / 90,701.78-125,287.41-62,358.26

Finding the Fourth Proportional to 90,701.78, 125,287.41 and 62,358.26

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Solution

The fourth proportional to 90,701.78, 125,287.41 and 62,358.26 is: 86,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,701.78 : 125,287.41 = 62,358.26 : x
  2. Step 2: Convert to fraction form
    90,701.78/125,287.41 = 62,358.26/x
  3. Step 3: Cross multiply
    90,701.78x = 125,287.41 × 62,358.26
  4. Step 4: Simplify right side
    90,701.78x = 7,812,704,887.51
  5. Step 5: Solve for x
    x = 7,812,704,887.51/90,701.78
  6. Step 6: Final answer
    x = 86,136.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.