Home / 90,274.70-124,579.20-49,438.64

Finding the Fourth Proportional to 90,274.70, 124,579.20 and 49,438.64

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Solution

The fourth proportional to 90,274.70, 124,579.20 and 49,438.64 is: 68,225.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,274.70 : 124,579.20 = 49,438.64 : x
  2. Step 2: Convert to fraction form
    90,274.70/124,579.20 = 49,438.64/x
  3. Step 3: Cross multiply
    90,274.70x = 124,579.20 × 49,438.64
  4. Step 4: Simplify right side
    90,274.70x = 6,159,026,220.29
  5. Step 5: Solve for x
    x = 6,159,026,220.29/90,274.70
  6. Step 6: Final answer
    x = 68,225.39

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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.