Home / 90,458.26-124,750.73-56,469.88

Finding the Fourth Proportional to 90,458.26, 124,750.73 and 56,469.88

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Solution

The fourth proportional to 90,458.26, 124,750.73 and 56,469.88 is: 77,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,458.26 : 124,750.73 = 56,469.88 : x
  2. Step 2: Convert to fraction form
    90,458.26/124,750.73 = 56,469.88/x
  3. Step 3: Cross multiply
    90,458.26x = 124,750.73 × 56,469.88
  4. Step 4: Simplify right side
    90,458.26x = 7,044,658,753.01
  5. Step 5: Solve for x
    x = 7,044,658,753.01/90,458.26
  6. Step 6: Final answer
    x = 77,877.45

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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.