Home / 51,688.68-71,338.19-31,557.30

Finding the Fourth Proportional to 51,688.68, 71,338.19 and 31,557.30

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Solution

The fourth proportional to 51,688.68, 71,338.19 and 31,557.30 is: 43,553.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,688.68 : 71,338.19 = 31,557.30 : x
  2. Step 2: Convert to fraction form
    51,688.68/71,338.19 = 31,557.30/x
  3. Step 3: Cross multiply
    51,688.68x = 71,338.19 × 31,557.30
  4. Step 4: Simplify right side
    51,688.68x = 2,251,240,505.50
  5. Step 5: Solve for x
    x = 2,251,240,505.50/51,688.68
  6. Step 6: Final answer
    x = 43,553.84

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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.