Home / 86,777.40-130,166.10-49,452.60

Finding the Fourth Proportional to 86,777.40, 130,166.10 and 49,452.60

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Solution

The fourth proportional to 86,777.40, 130,166.10 and 49,452.60 is: 74,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,777.40 : 130,166.10 = 49,452.60 : x
  2. Step 2: Convert to fraction form
    86,777.40/130,166.10 = 49,452.60/x
  3. Step 3: Cross multiply
    86,777.40x = 130,166.10 × 49,452.60
  4. Step 4: Simplify right side
    86,777.40x = 6,437,052,076.86
  5. Step 5: Solve for x
    x = 6,437,052,076.86/86,777.40
  6. Step 6: Final answer
    x = 74,178.90

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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.