Home / 51,436.95-70,989.53-28,777.20

Finding the Fourth Proportional to 51,436.95, 70,989.53 and 28,777.20

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Solution

The fourth proportional to 51,436.95, 70,989.53 and 28,777.20 is: 39,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,436.95 : 70,989.53 = 28,777.20 : x
  2. Step 2: Convert to fraction form
    51,436.95/70,989.53 = 28,777.20/x
  3. Step 3: Cross multiply
    51,436.95x = 70,989.53 × 28,777.20
  4. Step 4: Simplify right side
    51,436.95x = 2,042,879,902.72
  5. Step 5: Solve for x
    x = 2,042,879,902.72/51,436.95
  6. Step 6: Final answer
    x = 39,716.19

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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.