Home / 53,221.50-79,672.86-51,328.92

Finding the Fourth Proportional to 53,221.50, 79,672.86 and 51,328.92

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Solution

The fourth proportional to 53,221.50, 79,672.86 and 51,328.92 is: 76,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,221.50 : 79,672.86 = 51,328.92 : x
  2. Step 2: Convert to fraction form
    53,221.50/79,672.86 = 51,328.92/x
  3. Step 3: Cross multiply
    53,221.50x = 79,672.86 × 51,328.92
  4. Step 4: Simplify right side
    53,221.50x = 4,089,521,857.11
  5. Step 5: Solve for x
    x = 4,089,521,857.11/53,221.50
  6. Step 6: Final answer
    x = 76,839.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.