Home / 66,500.45-91,770.63-42,627.17

Finding the Fourth Proportional to 66,500.45, 91,770.63 and 42,627.17

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Solution

The fourth proportional to 66,500.45, 91,770.63 and 42,627.17 is: 58,825.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,500.45 : 91,770.63 = 42,627.17 : x
  2. Step 2: Convert to fraction form
    66,500.45/91,770.63 = 42,627.17/x
  3. Step 3: Cross multiply
    66,500.45x = 91,770.63 × 42,627.17
  4. Step 4: Simplify right side
    66,500.45x = 3,911,922,032.88
  5. Step 5: Solve for x
    x = 3,911,922,032.88/66,500.45
  6. Step 6: Final answer
    x = 58,825.50

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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.