Home / 66,528.90-99,793.35-40,220.10

Finding the Fourth Proportional to 66,528.90, 99,793.35 and 40,220.10

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Solution

The fourth proportional to 66,528.90, 99,793.35 and 40,220.10 is: 60,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528.90 : 99,793.35 = 40,220.10 : x
  2. Step 2: Convert to fraction form
    66,528.90/99,793.35 = 40,220.10/x
  3. Step 3: Cross multiply
    66,528.90x = 99,793.35 × 40,220.10
  4. Step 4: Simplify right side
    66,528.90x = 4,013,698,516.34
  5. Step 5: Solve for x
    x = 4,013,698,516.34/66,528.90
  6. Step 6: Final answer
    x = 60,330.15

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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.