Home / 65,701.86-90,562.05-51,336.57

Finding the Fourth Proportional to 65,701.86, 90,562.05 and 51,336.57

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Solution

The fourth proportional to 65,701.86, 90,562.05 and 51,336.57 is: 70,761.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,701.86 : 90,562.05 = 51,336.57 : x
  2. Step 2: Convert to fraction form
    65,701.86/90,562.05 = 51,336.57/x
  3. Step 3: Cross multiply
    65,701.86x = 90,562.05 × 51,336.57
  4. Step 4: Simplify right side
    65,701.86x = 4,649,145,019.17
  5. Step 5: Solve for x
    x = 4,649,145,019.17/65,701.86
  6. Step 6: Final answer
    x = 70,761.24

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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.