Home / 88,969.28-122,779.32-48,685.64

Finding the Fourth Proportional to 88,969.28, 122,779.32 and 48,685.64

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Solution

The fourth proportional to 88,969.28, 122,779.32 and 48,685.64 is: 67,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,969.28 : 122,779.32 = 48,685.64 : x
  2. Step 2: Convert to fraction form
    88,969.28/122,779.32 = 48,685.64/x
  3. Step 3: Cross multiply
    88,969.28x = 122,779.32 × 48,685.64
  4. Step 4: Simplify right side
    88,969.28x = 5,977,589,772.96
  5. Step 5: Solve for x
    x = 5,977,589,772.96/88,969.28
  6. Step 6: Final answer
    x = 67,187.12

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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.