Home / 58,172.80-87,267.45-18,720.73

Finding the Fourth Proportional to 58,172.80, 87,267.45 and 18,720.73

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Solution

The fourth proportional to 58,172.80, 87,267.45 and 18,720.73 is: 28,083.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,172.80 : 87,267.45 = 18,720.73 : x
  2. Step 2: Convert to fraction form
    58,172.80/87,267.45 = 18,720.73/x
  3. Step 3: Cross multiply
    58,172.80x = 87,267.45 × 18,720.73
  4. Step 4: Simplify right side
    58,172.80x = 1,633,710,369.24
  5. Step 5: Solve for x
    x = 1,633,710,369.24/58,172.80
  6. Step 6: Final answer
    x = 28,083.75

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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.