Home / 55,983.36-77,258.88-30,835.20

Finding the Fourth Proportional to 55,983.36, 77,258.88 and 30,835.20

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Solution

The fourth proportional to 55,983.36, 77,258.88 and 30,835.20 is: 42,553.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,983.36 : 77,258.88 = 30,835.20 : x
  2. Step 2: Convert to fraction form
    55,983.36/77,258.88 = 30,835.20/x
  3. Step 3: Cross multiply
    55,983.36x = 77,258.88 × 30,835.20
  4. Step 4: Simplify right side
    55,983.36x = 2,382,293,016.58
  5. Step 5: Solve for x
    x = 2,382,293,016.58/55,983.36
  6. Step 6: Final answer
    x = 42,553.59

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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.