Home / 66,698.20-99,877.96-40,027.40

Finding the Fourth Proportional to 66,698.20, 99,877.96 and 40,027.40

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Solution

The fourth proportional to 66,698.20, 99,877.96 and 40,027.40 is: 59,939.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,698.20 : 99,877.96 = 40,027.40 : x
  2. Step 2: Convert to fraction form
    66,698.20/99,877.96 = 40,027.40/x
  3. Step 3: Cross multiply
    66,698.20x = 99,877.96 × 40,027.40
  4. Step 4: Simplify right side
    66,698.20x = 3,997,855,056.10
  5. Step 5: Solve for x
    x = 3,997,855,056.10/66,698.20
  6. Step 6: Final answer
    x = 59,939.47

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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.