Home / 84,878.28-127,206.72-47,436.84

Finding the Fourth Proportional to 84,878.28, 127,206.72 and 47,436.84

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Solution

The fourth proportional to 84,878.28, 127,206.72 and 47,436.84 is: 71,093.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,878.28 : 127,206.72 = 47,436.84 : x
  2. Step 2: Convert to fraction form
    84,878.28/127,206.72 = 47,436.84/x
  3. Step 3: Cross multiply
    84,878.28x = 127,206.72 × 47,436.84
  4. Step 4: Simplify right side
    84,878.28x = 6,034,284,823.56
  5. Step 5: Solve for x
    x = 6,034,284,823.56/84,878.28
  6. Step 6: Final answer
    x = 71,093.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.