Home / 51,436.06-70,981.41-28,774.95

Finding the Fourth Proportional to 51,436.06, 70,981.41 and 28,774.95

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Solution

The fourth proportional to 51,436.06, 70,981.41 and 28,774.95 is: 39,709.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,436.06 : 70,981.41 = 28,774.95 : x
  2. Step 2: Convert to fraction form
    51,436.06/70,981.41 = 28,774.95/x
  3. Step 3: Cross multiply
    51,436.06x = 70,981.41 × 28,774.95
  4. Step 4: Simplify right side
    51,436.06x = 2,042,486,365.41
  5. Step 5: Solve for x
    x = 2,042,486,365.41/51,436.06
  6. Step 6: Final answer
    x = 39,709.23

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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.