Home / 90,180.30-124,409.07-54,349.14

Finding the Fourth Proportional to 90,180.30, 124,409.07 and 54,349.14

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Solution

The fourth proportional to 90,180.30, 124,409.07 and 54,349.14 is: 74,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,180.30 : 124,409.07 = 54,349.14 : x
  2. Step 2: Convert to fraction form
    90,180.30/124,409.07 = 54,349.14/x
  3. Step 3: Cross multiply
    90,180.30x = 124,409.07 × 54,349.14
  4. Step 4: Simplify right side
    90,180.30x = 6,761,525,962.70
  5. Step 5: Solve for x
    x = 6,761,525,962.70/90,180.30
  6. Step 6: Final answer
    x = 74,977.86

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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.