Home / 90,136.08-124,389.72-49,852.62

Finding the Fourth Proportional to 90,136.08, 124,389.72 and 49,852.62

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Solution

The fourth proportional to 90,136.08, 124,389.72 and 49,852.62 is: 68,797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,136.08 : 124,389.72 = 49,852.62 : x
  2. Step 2: Convert to fraction form
    90,136.08/124,389.72 = 49,852.62/x
  3. Step 3: Cross multiply
    90,136.08x = 124,389.72 × 49,852.62
  4. Step 4: Simplify right side
    90,136.08x = 6,201,153,443.07
  5. Step 5: Solve for x
    x = 6,201,153,443.07/90,136.08
  6. Step 6: Final answer
    x = 68,797.68

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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.