Home / 51,431.15-70,971.66-28,766.22

Finding the Fourth Proportional to 51,431.15, 70,971.66 and 28,766.22

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Solution

The fourth proportional to 51,431.15, 70,971.66 and 28,766.22 is: 39,695.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,431.15 : 70,971.66 = 28,766.22 : x
  2. Step 2: Convert to fraction form
    51,431.15/70,971.66 = 28,766.22/x
  3. Step 3: Cross multiply
    51,431.15x = 70,971.66 × 28,766.22
  4. Step 4: Simplify right side
    51,431.15x = 2,041,586,385.33
  5. Step 5: Solve for x
    x = 2,041,586,385.33/51,431.15
  6. Step 6: Final answer
    x = 39,695.53

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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.