Home / 51,109.17-70,530.11-28,447.80

Finding the Fourth Proportional to 51,109.17, 70,530.11 and 28,447.80

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Solution

The fourth proportional to 51,109.17, 70,530.11 and 28,447.80 is: 39,257.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109.17 : 70,530.11 = 28,447.80 : x
  2. Step 2: Convert to fraction form
    51,109.17/70,530.11 = 28,447.80/x
  3. Step 3: Cross multiply
    51,109.17x = 70,530.11 × 28,447.80
  4. Step 4: Simplify right side
    51,109.17x = 2,006,426,321.02
  5. Step 5: Solve for x
    x = 2,006,426,321.02/51,109.17
  6. Step 6: Final answer
    x = 39,257.66

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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.