Home / 39,999.20-59,912.40-35,621.60

Finding the Fourth Proportional to 39,999.20, 59,912.40 and 35,621.60

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Solution

The fourth proportional to 39,999.20, 59,912.40 and 35,621.60 is: 53,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,999.20 : 59,912.40 = 35,621.60 : x
  2. Step 2: Convert to fraction form
    39,999.20/59,912.40 = 35,621.60/x
  3. Step 3: Cross multiply
    39,999.20x = 59,912.40 × 35,621.60
  4. Step 4: Simplify right side
    39,999.20x = 2,134,175,547.84
  5. Step 5: Solve for x
    x = 2,134,175,547.84/39,999.20
  6. Step 6: Final answer
    x = 53,355.46

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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.