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Finding the Fourth Proportional to 66,020.40, 99,030.60 and 50,468.40

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Solution

The fourth proportional to 66,020.40, 99,030.60 and 50,468.40 is: 75,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,020.40 : 99,030.60 = 50,468.40 : x
  2. Step 2: Convert to fraction form
    66,020.40/99,030.60 = 50,468.40/x
  3. Step 3: Cross multiply
    66,020.40x = 99,030.60 × 50,468.40
  4. Step 4: Simplify right side
    66,020.40x = 4,997,915,933.04
  5. Step 5: Solve for x
    x = 4,997,915,933.04/66,020.40
  6. Step 6: Final answer
    x = 75,702.60

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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.