Home / 90,752.14-136,167.18-31,555.54

Finding the Fourth Proportional to 90,752.14, 136,167.18 and 31,555.54

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Solution

The fourth proportional to 90,752.14, 136,167.18 and 31,555.54 is: 47,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,752.14 : 136,167.18 = 31,555.54 : x
  2. Step 2: Convert to fraction form
    90,752.14/136,167.18 = 31,555.54/x
  3. Step 3: Cross multiply
    90,752.14x = 136,167.18 × 31,555.54
  4. Step 4: Simplify right side
    90,752.14x = 4,296,828,895.18
  5. Step 5: Solve for x
    x = 4,296,828,895.18/90,752.14
  6. Step 6: Final answer
    x = 47,346.86

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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.