Home / 57,028.52-78,695.35-31,530.74

Finding the Fourth Proportional to 57,028.52, 78,695.35 and 31,530.74

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Solution

The fourth proportional to 57,028.52, 78,695.35 and 31,530.74 is: 43,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,028.52 : 78,695.35 = 31,530.74 : x
  2. Step 2: Convert to fraction form
    57,028.52/78,695.35 = 31,530.74/x
  3. Step 3: Cross multiply
    57,028.52x = 78,695.35 × 31,530.74
  4. Step 4: Simplify right side
    57,028.52x = 2,481,322,147.76
  5. Step 5: Solve for x
    x = 2,481,322,147.76/57,028.52
  6. Step 6: Final answer
    x = 43,510.20

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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.