Home / 66,703.10-100,273.35-47,117.30

Finding the Fourth Proportional to 66,703.10, 100,273.35 and 47,117.30

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Solution

The fourth proportional to 66,703.10, 100,273.35 and 47,117.30 is: 70,830.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,703.10 : 100,273.35 = 47,117.30 : x
  2. Step 2: Convert to fraction form
    66,703.10/100,273.35 = 47,117.30/x
  3. Step 3: Cross multiply
    66,703.10x = 100,273.35 × 47,117.30
  4. Step 4: Simplify right side
    66,703.10x = 4,724,609,513.96
  5. Step 5: Solve for x
    x = 4,724,609,513.96/66,703.10
  6. Step 6: Final answer
    x = 70,830.43

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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.