Home / 64,126.74-88,519.60-57,400.50

Finding the Fourth Proportional to 64,126.74, 88,519.60 and 57,400.50

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Solution

The fourth proportional to 64,126.74, 88,519.60 and 57,400.50 is: 79,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,126.74 : 88,519.60 = 57,400.50 : x
  2. Step 2: Convert to fraction form
    64,126.74/88,519.60 = 57,400.50/x
  3. Step 3: Cross multiply
    64,126.74x = 88,519.60 × 57,400.50
  4. Step 4: Simplify right side
    64,126.74x = 5,081,069,299.80
  5. Step 5: Solve for x
    x = 5,081,069,299.80/64,126.74
  6. Step 6: Final answer
    x = 79,234.80

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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.