Home / 90,043.50-124,256.70-49,756.43

Finding the Fourth Proportional to 90,043.50, 124,256.70 and 49,756.43

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Solution

The fourth proportional to 90,043.50, 124,256.70 and 49,756.43 is: 68,662.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,043.50 : 124,256.70 = 49,756.43 : x
  2. Step 2: Convert to fraction form
    90,043.50/124,256.70 = 49,756.43/x
  3. Step 3: Cross multiply
    90,043.50x = 124,256.70 × 49,756.43
  4. Step 4: Simplify right side
    90,043.50x = 6,182,569,795.58
  5. Step 5: Solve for x
    x = 6,182,569,795.58/90,043.50
  6. Step 6: Final answer
    x = 68,662.03

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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.