Home / 65,239.13-89,355.41-61,409.13

Finding the Fourth Proportional to 65,239.13, 89,355.41 and 61,409.13

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Solution

The fourth proportional to 65,239.13, 89,355.41 and 61,409.13 is: 84,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,239.13 : 89,355.41 = 61,409.13 : x
  2. Step 2: Convert to fraction form
    65,239.13/89,355.41 = 61,409.13/x
  3. Step 3: Cross multiply
    65,239.13x = 89,355.41 × 61,409.13
  4. Step 4: Simplify right side
    65,239.13x = 5,487,237,681.85
  5. Step 5: Solve for x
    x = 5,487,237,681.85/65,239.13
  6. Step 6: Final answer
    x = 84,109.61

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.