Home / 55,128.27-76,098.64-39,079.46

Finding the Fourth Proportional to 55,128.27, 76,098.64 and 39,079.46

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Solution

The fourth proportional to 55,128.27, 76,098.64 and 39,079.46 is: 53,944.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,128.27 : 76,098.64 = 39,079.46 : x
  2. Step 2: Convert to fraction form
    55,128.27/76,098.64 = 39,079.46/x
  3. Step 3: Cross multiply
    55,128.27x = 76,098.64 × 39,079.46
  4. Step 4: Simplify right side
    55,128.27x = 2,973,893,855.63
  5. Step 5: Solve for x
    x = 2,973,893,855.63/55,128.27
  6. Step 6: Final answer
    x = 53,944.99

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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.