Home / 66,888.15-100,332-16,968.12

Finding the Fourth Proportional to 66,888.15, 100,332 and 16,968.12

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Solution

The fourth proportional to 66,888.15, 100,332 and 16,968.12 is: 25,452.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,888.15 : 100,332 = 16,968.12 : x
  2. Step 2: Convert to fraction form
    66,888.15/100,332 = 16,968.12/x
  3. Step 3: Cross multiply
    66,888.15x = 100,332 × 16,968.12
  4. Step 4: Simplify right side
    66,888.15x = 1,702,445,415.84
  5. Step 5: Solve for x
    x = 1,702,445,415.84/66,888.15
  6. Step 6: Final answer
    x = 25,452.12

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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.