Home / 55,020.18-75,929.66-31,146.34

Finding the Fourth Proportional to 55,020.18, 75,929.66 and 31,146.34

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Solution

The fourth proportional to 55,020.18, 75,929.66 and 31,146.34 is: 42,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,020.18 : 75,929.66 = 31,146.34 : x
  2. Step 2: Convert to fraction form
    55,020.18/75,929.66 = 31,146.34/x
  3. Step 3: Cross multiply
    55,020.18x = 75,929.66 × 31,146.34
  4. Step 4: Simplify right side
    55,020.18x = 2,364,931,006.44
  5. Step 5: Solve for x
    x = 2,364,931,006.44/55,020.18
  6. Step 6: Final answer
    x = 42,982.97

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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.