Home / 51,916.04-71,678.34-39,958.28

Finding the Fourth Proportional to 51,916.04, 71,678.34 and 39,958.28

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Solution

The fourth proportional to 51,916.04, 71,678.34 and 39,958.28 is: 55,168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,916.04 : 71,678.34 = 39,958.28 : x
  2. Step 2: Convert to fraction form
    51,916.04/71,678.34 = 39,958.28/x
  3. Step 3: Cross multiply
    51,916.04x = 71,678.34 × 39,958.28
  4. Step 4: Simplify right side
    51,916.04x = 2,864,143,179.66
  5. Step 5: Solve for x
    x = 2,864,143,179.66/51,916.04
  6. Step 6: Final answer
    x = 55,168.75

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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.