Home / 51,156.46-70,687.44-39,855.13

Finding the Fourth Proportional to 51,156.46, 70,687.44 and 39,855.13

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Solution

The fourth proportional to 51,156.46, 70,687.44 and 39,855.13 is: 55,071.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,156.46 : 70,687.44 = 39,855.13 : x
  2. Step 2: Convert to fraction form
    51,156.46/70,687.44 = 39,855.13/x
  3. Step 3: Cross multiply
    51,156.46x = 70,687.44 × 39,855.13
  4. Step 4: Simplify right side
    51,156.46x = 2,817,257,110.57
  5. Step 5: Solve for x
    x = 2,817,257,110.57/51,156.46
  6. Step 6: Final answer
    x = 55,071.39

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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.