Home / 42,765.58-64,148.22-11,600.86

Finding the Fourth Proportional to 42,765.58, 64,148.22 and 11,600.86

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Solution

The fourth proportional to 42,765.58, 64,148.22 and 11,600.86 is: 17,401.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,765.58 : 64,148.22 = 11,600.86 : x
  2. Step 2: Convert to fraction form
    42,765.58/64,148.22 = 11,600.86/x
  3. Step 3: Cross multiply
    42,765.58x = 64,148.22 × 11,600.86
  4. Step 4: Simplify right side
    42,765.58x = 744,174,519.47
  5. Step 5: Solve for x
    x = 744,174,519.47/42,765.58
  6. Step 6: Final answer
    x = 17,401.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.