Home / 42,703.12-63,914.82-38,610.64

Finding the Fourth Proportional to 42,703.12, 63,914.82 and 38,610.64

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Solution

The fourth proportional to 42,703.12, 63,914.82 and 38,610.64 is: 57,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,703.12 : 63,914.82 = 38,610.64 : x
  2. Step 2: Convert to fraction form
    42,703.12/63,914.82 = 38,610.64/x
  3. Step 3: Cross multiply
    42,703.12x = 63,914.82 × 38,610.64
  4. Step 4: Simplify right side
    42,703.12x = 2,467,792,105.68
  5. Step 5: Solve for x
    x = 2,467,792,105.68/42,703.12
  6. Step 6: Final answer
    x = 57,789.50

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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.