Home / 61,381.27-84,717.78-38,421.74

Finding the Fourth Proportional to 61,381.27, 84,717.78 and 38,421.74

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Solution

The fourth proportional to 61,381.27, 84,717.78 and 38,421.74 is: 53,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,381.27 : 84,717.78 = 38,421.74 : x
  2. Step 2: Convert to fraction form
    61,381.27/84,717.78 = 38,421.74/x
  3. Step 3: Cross multiply
    61,381.27x = 84,717.78 × 38,421.74
  4. Step 4: Simplify right side
    61,381.27x = 3,255,004,516.54
  5. Step 5: Solve for x
    x = 3,255,004,516.54/61,381.27
  6. Step 6: Final answer
    x = 53,029.28

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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.