Home / 65,109.65-97,664.48-31,834.85

Finding the Fourth Proportional to 65,109.65, 97,664.48 and 31,834.85

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Solution

The fourth proportional to 65,109.65, 97,664.48 and 31,834.85 is: 47,752.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,109.65 : 97,664.48 = 31,834.85 : x
  2. Step 2: Convert to fraction form
    65,109.65/97,664.48 = 31,834.85/x
  3. Step 3: Cross multiply
    65,109.65x = 97,664.48 × 31,834.85
  4. Step 4: Simplify right side
    65,109.65x = 3,109,133,911.95
  5. Step 5: Solve for x
    x = 3,109,133,911.95/65,109.65
  6. Step 6: Final answer
    x = 47,752.28

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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.