Home / 90,225.48-124,509.44-49,939.28

Finding the Fourth Proportional to 90,225.48, 124,509.44 and 49,939.28

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Solution

The fourth proportional to 90,225.48, 124,509.44 and 49,939.28 is: 68,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,225.48 : 124,509.44 = 49,939.28 : x
  2. Step 2: Convert to fraction form
    90,225.48/124,509.44 = 49,939.28/x
  3. Step 3: Cross multiply
    90,225.48x = 124,509.44 × 49,939.28
  4. Step 4: Simplify right side
    90,225.48x = 6,217,911,786.80
  5. Step 5: Solve for x
    x = 6,217,911,786.80/90,225.48
  6. Step 6: Final answer
    x = 68,915.25

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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.