Home / 90,136.74-124,388.45-51,882.31

Finding the Fourth Proportional to 90,136.74, 124,388.45 and 51,882.31

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Solution

The fourth proportional to 90,136.74, 124,388.45 and 51,882.31 is: 71,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,136.74 : 124,388.45 = 51,882.31 : x
  2. Step 2: Convert to fraction form
    90,136.74/124,388.45 = 51,882.31/x
  3. Step 3: Cross multiply
    90,136.74x = 124,388.45 × 51,882.31
  4. Step 4: Simplify right side
    90,136.74x = 6,453,560,123.32
  5. Step 5: Solve for x
    x = 6,453,560,123.32/90,136.74
  6. Step 6: Final answer
    x = 71,597.44

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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.