Home / 91,296.63-136,937.22-31,320.18

Finding the Fourth Proportional to 91,296.63, 136,937.22 and 31,320.18

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Solution

The fourth proportional to 91,296.63, 136,937.22 and 31,320.18 is: 46,977.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,296.63 : 136,937.22 = 31,320.18 : x
  2. Step 2: Convert to fraction form
    91,296.63/136,937.22 = 31,320.18/x
  3. Step 3: Cross multiply
    91,296.63x = 136,937.22 × 31,320.18
  4. Step 4: Simplify right side
    91,296.63x = 4,288,898,379.10
  5. Step 5: Solve for x
    x = 4,288,898,379.10/91,296.63
  6. Step 6: Final answer
    x = 46,977.62

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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.