Home / 88,839.65-122,586.90-57,051.60

Finding the Fourth Proportional to 88,839.65, 122,586.90 and 57,051.60

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Solution

The fourth proportional to 88,839.65, 122,586.90 and 57,051.60 is: 78,723.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,839.65 : 122,586.90 = 57,051.60 : x
  2. Step 2: Convert to fraction form
    88,839.65/122,586.90 = 57,051.60/x
  3. Step 3: Cross multiply
    88,839.65x = 122,586.90 × 57,051.60
  4. Step 4: Simplify right side
    88,839.65x = 6,993,778,784.04
  5. Step 5: Solve for x
    x = 6,993,778,784.04/88,839.65
  6. Step 6: Final answer
    x = 78,723.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.