Home / 66,316.86-91,517.28-36,102.42

Finding the Fourth Proportional to 66,316.86, 91,517.28 and 36,102.42

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Solution

The fourth proportional to 66,316.86, 91,517.28 and 36,102.42 is: 49,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,316.86 : 91,517.28 = 36,102.42 : x
  2. Step 2: Convert to fraction form
    66,316.86/91,517.28 = 36,102.42/x
  3. Step 3: Cross multiply
    66,316.86x = 91,517.28 × 36,102.42
  4. Step 4: Simplify right side
    66,316.86x = 3,303,995,279.82
  5. Step 5: Solve for x
    x = 3,303,995,279.82/66,316.86
  6. Step 6: Final answer
    x = 49,821.35

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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.