Home / 66,435.20-99,364.80-59,465.60

Finding the Fourth Proportional to 66,435.20, 99,364.80 and 59,465.60

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Solution

The fourth proportional to 66,435.20, 99,364.80 and 59,465.60 is: 88,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,435.20 : 99,364.80 = 59,465.60 : x
  2. Step 2: Convert to fraction form
    66,435.20/99,364.80 = 59,465.60/x
  3. Step 3: Cross multiply
    66,435.20x = 99,364.80 × 59,465.60
  4. Step 4: Simplify right side
    66,435.20x = 5,908,787,450.88
  5. Step 5: Solve for x
    x = 5,908,787,450.88/66,435.20
  6. Step 6: Final answer
    x = 88,940.61

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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.