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Finding the Fourth Proportional to 115,007.60, 172,516.80 and 36,124.40

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Solution

The fourth proportional to 115,007.60, 172,516.80 and 36,124.40 is: 54,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,007.60 : 172,516.80 = 36,124.40 : x
  2. Step 2: Convert to fraction form
    115,007.60/172,516.80 = 36,124.40/x
  3. Step 3: Cross multiply
    115,007.60x = 172,516.80 × 36,124.40
  4. Step 4: Simplify right side
    115,007.60x = 6,232,065,889.92
  5. Step 5: Solve for x
    x = 6,232,065,889.92/115,007.60
  6. Step 6: Final answer
    x = 54,188.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.