Home / 40,089.65-60,142.77-12,008.57

Finding the Fourth Proportional to 40,089.65, 60,142.77 and 12,008.57

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Solution

The fourth proportional to 40,089.65, 60,142.77 and 12,008.57 is: 18,015.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,089.65 : 60,142.77 = 12,008.57 : x
  2. Step 2: Convert to fraction form
    40,089.65/60,142.77 = 12,008.57/x
  3. Step 3: Cross multiply
    40,089.65x = 60,142.77 × 12,008.57
  4. Step 4: Simplify right side
    40,089.65x = 722,228,362.83
  5. Step 5: Solve for x
    x = 722,228,362.83/40,089.65
  6. Step 6: Final answer
    x = 18,015.33

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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.