Home / 66,470.20-99,858.90-45,734.20

Finding the Fourth Proportional to 66,470.20, 99,858.90 and 45,734.20

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Solution

The fourth proportional to 66,470.20, 99,858.90 and 45,734.20 is: 68,706.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,470.20 : 99,858.90 = 45,734.20 : x
  2. Step 2: Convert to fraction form
    66,470.20/99,858.90 = 45,734.20/x
  3. Step 3: Cross multiply
    66,470.20x = 99,858.90 × 45,734.20
  4. Step 4: Simplify right side
    66,470.20x = 4,566,966,904.38
  5. Step 5: Solve for x
    x = 4,566,966,904.38/66,470.20
  6. Step 6: Final answer
    x = 68,706.98

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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.