Home / 57,299.04-79,076.16-38,145.76

Finding the Fourth Proportional to 57,299.04, 79,076.16 and 38,145.76

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Solution

The fourth proportional to 57,299.04, 79,076.16 and 38,145.76 is: 52,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,299.04 : 79,076.16 = 38,145.76 : x
  2. Step 2: Convert to fraction form
    57,299.04/79,076.16 = 38,145.76/x
  3. Step 3: Cross multiply
    57,299.04x = 79,076.16 × 38,145.76
  4. Step 4: Simplify right side
    57,299.04x = 3,016,420,221.08
  5. Step 5: Solve for x
    x = 3,016,420,221.08/57,299.04
  6. Step 6: Final answer
    x = 52,643.47

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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.