Home / 53,639.80-80,439.10-25,538.20

Finding the Fourth Proportional to 53,639.80, 80,439.10 and 25,538.20

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Solution

The fourth proportional to 53,639.80, 80,439.10 and 25,538.20 is: 38,297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,639.80 : 80,439.10 = 25,538.20 : x
  2. Step 2: Convert to fraction form
    53,639.80/80,439.10 = 25,538.20/x
  3. Step 3: Cross multiply
    53,639.80x = 80,439.10 × 25,538.20
  4. Step 4: Simplify right side
    53,639.80x = 2,054,269,823.62
  5. Step 5: Solve for x
    x = 2,054,269,823.62/53,639.80
  6. Step 6: Final answer
    x = 38,297.49

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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.