Home / 51,436.04-71,022-39,480.44

Finding the Fourth Proportional to 51,436.04, 71,022 and 39,480.44

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Solution

The fourth proportional to 51,436.04, 71,022 and 39,480.44 is: 54,513.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,436.04 : 71,022 = 39,480.44 : x
  2. Step 2: Convert to fraction form
    51,436.04/71,022 = 39,480.44/x
  3. Step 3: Cross multiply
    51,436.04x = 71,022 × 39,480.44
  4. Step 4: Simplify right side
    51,436.04x = 2,803,979,809.68
  5. Step 5: Solve for x
    x = 2,803,979,809.68/51,436.04
  6. Step 6: Final answer
    x = 54,513.91

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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.