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Finding the Fourth Proportional to 82,129.30, 113,331.65 and 46,328.11

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Solution

The fourth proportional to 82,129.30, 113,331.65 and 46,328.11 is: 63,928.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,129.30 : 113,331.65 = 46,328.11 : x
  2. Step 2: Convert to fraction form
    82,129.30/113,331.65 = 46,328.11/x
  3. Step 3: Cross multiply
    82,129.30x = 113,331.65 × 46,328.11
  4. Step 4: Simplify right side
    82,129.30x = 5,250,440,632.71
  5. Step 5: Solve for x
    x = 5,250,440,632.71/82,129.30
  6. Step 6: Final answer
    x = 63,928.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.