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Finding the Fourth Proportional to 113,502.90, 170,272.71 and 38,629.74

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Solution

The fourth proportional to 113,502.90, 170,272.71 and 38,629.74 is: 57,950.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,502.90 : 170,272.71 = 38,629.74 : x
  2. Step 2: Convert to fraction form
    113,502.90/170,272.71 = 38,629.74/x
  3. Step 3: Cross multiply
    113,502.90x = 170,272.71 × 38,629.74
  4. Step 4: Simplify right side
    113,502.90x = 6,577,590,516.40
  5. Step 5: Solve for x
    x = 6,577,590,516.40/113,502.90
  6. Step 6: Final answer
    x = 57,950.86

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Why These Related Problems?

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