Home / 51,400.50-70,903.11-30,175.66

Finding the Fourth Proportional to 51,400.50, 70,903.11 and 30,175.66

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Solution

The fourth proportional to 51,400.50, 70,903.11 and 30,175.66 is: 41,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,400.50 : 70,903.11 = 30,175.66 : x
  2. Step 2: Convert to fraction form
    51,400.50/70,903.11 = 30,175.66/x
  3. Step 3: Cross multiply
    51,400.50x = 70,903.11 × 30,175.66
  4. Step 4: Simplify right side
    51,400.50x = 2,139,548,140.30
  5. Step 5: Solve for x
    x = 2,139,548,140.30/51,400.50
  6. Step 6: Final answer
    x = 41,625.05

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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.