Home / 58,436.80-87,633.60-18,995.20

Finding the Fourth Proportional to 58,436.80, 87,633.60 and 18,995.20

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Solution

The fourth proportional to 58,436.80, 87,633.60 and 18,995.20 is: 28,485.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,436.80 : 87,633.60 = 18,995.20 : x
  2. Step 2: Convert to fraction form
    58,436.80/87,633.60 = 18,995.20/x
  3. Step 3: Cross multiply
    58,436.80x = 87,633.60 × 18,995.20
  4. Step 4: Simplify right side
    58,436.80x = 1,664,617,758.72
  5. Step 5: Solve for x
    x = 1,664,617,758.72/58,436.80
  6. Step 6: Final answer
    x = 28,485.78

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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.