Home / 90,461.40-124,839.84-54,644.28

Finding the Fourth Proportional to 90,461.40, 124,839.84 and 54,644.28

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Solution

The fourth proportional to 90,461.40, 124,839.84 and 54,644.28 is: 75,410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,461.40 : 124,839.84 = 54,644.28 : x
  2. Step 2: Convert to fraction form
    90,461.40/124,839.84 = 54,644.28/x
  3. Step 3: Cross multiply
    90,461.40x = 124,839.84 × 54,644.28
  4. Step 4: Simplify right side
    90,461.40x = 6,821,783,172.12
  5. Step 5: Solve for x
    x = 6,821,783,172.12/90,461.40
  6. Step 6: Final answer
    x = 75,410.98

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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.