Home / 82,186.60-113,415.78-48,663.40

Finding the Fourth Proportional to 82,186.60, 113,415.78 and 48,663.40

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Solution

The fourth proportional to 82,186.60, 113,415.78 and 48,663.40 is: 67,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,186.60 : 113,415.78 = 48,663.40 : x
  2. Step 2: Convert to fraction form
    82,186.60/113,415.78 = 48,663.40/x
  3. Step 3: Cross multiply
    82,186.60x = 113,415.78 × 48,663.40
  4. Step 4: Simplify right side
    82,186.60x = 5,519,197,468.45
  5. Step 5: Solve for x
    x = 5,519,197,468.45/82,186.60
  6. Step 6: Final answer
    x = 67,154.47

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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.