Home / 55,229.64-76,221.27-31,357.32

Finding the Fourth Proportional to 55,229.64, 76,221.27 and 31,357.32

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Solution

The fourth proportional to 55,229.64, 76,221.27 and 31,357.32 is: 43,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,229.64 : 76,221.27 = 31,357.32 : x
  2. Step 2: Convert to fraction form
    55,229.64/76,221.27 = 31,357.32/x
  3. Step 3: Cross multiply
    55,229.64x = 76,221.27 × 31,357.32
  4. Step 4: Simplify right side
    55,229.64x = 2,390,094,754.20
  5. Step 5: Solve for x
    x = 2,390,094,754.20/55,229.64
  6. Step 6: Final answer
    x = 43,275.58

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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.