Home / 90,166.38-124,438.91-51,927.18

Finding the Fourth Proportional to 90,166.38, 124,438.91 and 51,927.18

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Solution

The fourth proportional to 90,166.38, 124,438.91 and 51,927.18 is: 71,664.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,166.38 : 124,438.91 = 51,927.18 : x
  2. Step 2: Convert to fraction form
    90,166.38/124,438.91 = 51,927.18/x
  3. Step 3: Cross multiply
    90,166.38x = 124,438.91 × 51,927.18
  4. Step 4: Simplify right side
    90,166.38x = 6,461,761,418.94
  5. Step 5: Solve for x
    x = 6,461,761,418.94/90,166.38
  6. Step 6: Final answer
    x = 71,664.86

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1.5x scale

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.