Home / 60,664.80-90,997.20-39,669.60

Finding the Fourth Proportional to 60,664.80, 90,997.20 and 39,669.60

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Solution

The fourth proportional to 60,664.80, 90,997.20 and 39,669.60 is: 59,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,664.80 : 90,997.20 = 39,669.60 : x
  2. Step 2: Convert to fraction form
    60,664.80/90,997.20 = 39,669.60/x
  3. Step 3: Cross multiply
    60,664.80x = 90,997.20 × 39,669.60
  4. Step 4: Simplify right side
    60,664.80x = 3,609,822,525.12
  5. Step 5: Solve for x
    x = 3,609,822,525.12/60,664.80
  6. Step 6: Final answer
    x = 59,504.40

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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.