Home / 82,177.15-113,368.45-48,168.40

Finding the Fourth Proportional to 82,177.15, 113,368.45 and 48,168.40

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Solution

The fourth proportional to 82,177.15, 113,368.45 and 48,168.40 is: 66,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,177.15 : 113,368.45 = 48,168.40 : x
  2. Step 2: Convert to fraction form
    82,177.15/113,368.45 = 48,168.40/x
  3. Step 3: Cross multiply
    82,177.15x = 113,368.45 × 48,168.40
  4. Step 4: Simplify right side
    82,177.15x = 5,460,776,039.30
  5. Step 5: Solve for x
    x = 5,460,776,039.30/82,177.15
  6. Step 6: Final answer
    x = 66,451.27

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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.