Home / 57,774.20-86,661.30-47,276.60

Finding the Fourth Proportional to 57,774.20, 86,661.30 and 47,276.60

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Solution

The fourth proportional to 57,774.20, 86,661.30 and 47,276.60 is: 70,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,774.20 : 86,661.30 = 47,276.60 : x
  2. Step 2: Convert to fraction form
    57,774.20/86,661.30 = 47,276.60/x
  3. Step 3: Cross multiply
    57,774.20x = 86,661.30 × 47,276.60
  4. Step 4: Simplify right side
    57,774.20x = 4,097,051,615.58
  5. Step 5: Solve for x
    x = 4,097,051,615.58/57,774.20
  6. Step 6: Final answer
    x = 70,914.90

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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.