Home / 258,544.08-387,804.84-81,047.04

Finding the Fourth Proportional to 258,544.08, 387,804.84 and 81,047.04

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Solution

The fourth proportional to 258,544.08, 387,804.84 and 81,047.04 is: 121,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,544.08 : 387,804.84 = 81,047.04 : x
  2. Step 2: Convert to fraction form
    258,544.08/387,804.84 = 81,047.04/x
  3. Step 3: Cross multiply
    258,544.08x = 387,804.84 × 81,047.04
  4. Step 4: Simplify right side
    258,544.08x = 31,430,434,379.67
  5. Step 5: Solve for x
    x = 31,430,434,379.67/258,544.08
  6. Step 6: Final answer
    x = 121,567.02

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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.