Home / 55,737.72-76,919.28-30,587.28

Finding the Fourth Proportional to 55,737.72, 76,919.28 and 30,587.28

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Solution

The fourth proportional to 55,737.72, 76,919.28 and 30,587.28 is: 42,211.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,737.72 : 76,919.28 = 30,587.28 : x
  2. Step 2: Convert to fraction form
    55,737.72/76,919.28 = 30,587.28/x
  3. Step 3: Cross multiply
    55,737.72x = 76,919.28 × 30,587.28
  4. Step 4: Simplify right side
    55,737.72x = 2,352,751,554.76
  5. Step 5: Solve for x
    x = 2,352,751,554.76/55,737.72
  6. Step 6: Final answer
    x = 42,211.12

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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.