Home / 40,075.86-60,122.37-11,998.08

Finding the Fourth Proportional to 40,075.86, 60,122.37 and 11,998.08

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Solution

The fourth proportional to 40,075.86, 60,122.37 and 11,998.08 is: 17,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,075.86 : 60,122.37 = 11,998.08 : x
  2. Step 2: Convert to fraction form
    40,075.86/60,122.37 = 11,998.08/x
  3. Step 3: Cross multiply
    40,075.86x = 60,122.37 × 11,998.08
  4. Step 4: Simplify right side
    40,075.86x = 721,353,005.05
  5. Step 5: Solve for x
    x = 721,353,005.05/40,075.86
  6. Step 6: Final answer
    x = 17,999.69

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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.