Home / 51,093.18-70,507.45-28,431.31

Finding the Fourth Proportional to 51,093.18, 70,507.45 and 28,431.31

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Solution

The fourth proportional to 51,093.18, 70,507.45 and 28,431.31 is: 39,234.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,093.18 : 70,507.45 = 28,431.31 : x
  2. Step 2: Convert to fraction form
    51,093.18/70,507.45 = 28,431.31/x
  3. Step 3: Cross multiply
    51,093.18x = 70,507.45 × 28,431.31
  4. Step 4: Simplify right side
    51,093.18x = 2,004,619,168.26
  5. Step 5: Solve for x
    x = 2,004,619,168.26/51,093.18
  6. Step 6: Final answer
    x = 39,234.57

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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.