Home / 55,071.36-75,998.16-29,920.32

Finding the Fourth Proportional to 55,071.36, 75,998.16 and 29,920.32

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Solution

The fourth proportional to 55,071.36, 75,998.16 and 29,920.32 is: 41,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,071.36 : 75,998.16 = 29,920.32 : x
  2. Step 2: Convert to fraction form
    55,071.36/75,998.16 = 29,920.32/x
  3. Step 3: Cross multiply
    55,071.36x = 75,998.16 × 29,920.32
  4. Step 4: Simplify right side
    55,071.36x = 2,273,889,266.61
  5. Step 5: Solve for x
    x = 2,273,889,266.61/55,071.36
  6. Step 6: Final answer
    x = 41,289.87

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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.