Home / 66,993.48-92,424.69-40,137.12

Finding the Fourth Proportional to 66,993.48, 92,424.69 and 40,137.12

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Solution

The fourth proportional to 66,993.48, 92,424.69 and 40,137.12 is: 55,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,993.48 : 92,424.69 = 40,137.12 : x
  2. Step 2: Convert to fraction form
    66,993.48/92,424.69 = 40,137.12/x
  3. Step 3: Cross multiply
    66,993.48x = 92,424.69 × 40,137.12
  4. Step 4: Simplify right side
    66,993.48x = 3,709,660,873.49
  5. Step 5: Solve for x
    x = 3,709,660,873.49/66,993.48
  6. Step 6: Final answer
    x = 55,373.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.