Home / 42,769.68-59,029.76-31,455.60

Finding the Fourth Proportional to 42,769.68, 59,029.76 and 31,455.60

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Solution

The fourth proportional to 42,769.68, 59,029.76 and 31,455.60 is: 43,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,769.68 : 59,029.76 = 31,455.60 : x
  2. Step 2: Convert to fraction form
    42,769.68/59,029.76 = 31,455.60/x
  3. Step 3: Cross multiply
    42,769.68x = 59,029.76 × 31,455.60
  4. Step 4: Simplify right side
    42,769.68x = 1,856,816,518.66
  5. Step 5: Solve for x
    x = 1,856,816,518.66/42,769.68
  6. Step 6: Final answer
    x = 43,414.32

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1.5x scale

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.