Home / 51,085.86-70,497.81-28,729.86

Finding the Fourth Proportional to 51,085.86, 70,497.81 and 28,729.86

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Solution

The fourth proportional to 51,085.86, 70,497.81 and 28,729.86 is: 39,646.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,085.86 : 70,497.81 = 28,729.86 : x
  2. Step 2: Convert to fraction form
    51,085.86/70,497.81 = 28,729.86/x
  3. Step 3: Cross multiply
    51,085.86x = 70,497.81 × 28,729.86
  4. Step 4: Simplify right side
    51,085.86x = 2,025,392,211.61
  5. Step 5: Solve for x
    x = 2,025,392,211.61/51,085.86
  6. Step 6: Final answer
    x = 39,646.83

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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.