Home / 61,077.40-91,629.18-18,956.60

Finding the Fourth Proportional to 61,077.40, 91,629.18 and 18,956.60

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Solution

The fourth proportional to 61,077.40, 91,629.18 and 18,956.60 is: 28,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,077.40 : 91,629.18 = 18,956.60 : x
  2. Step 2: Convert to fraction form
    61,077.40/91,629.18 = 18,956.60/x
  3. Step 3: Cross multiply
    61,077.40x = 91,629.18 × 18,956.60
  4. Step 4: Simplify right side
    61,077.40x = 1,736,977,713.59
  5. Step 5: Solve for x
    x = 1,736,977,713.59/61,077.40
  6. Step 6: Final answer
    x = 28,438.96

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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.