Home / 56,678.08-84,999.84-45,558.40

Finding the Fourth Proportional to 56,678.08, 84,999.84 and 45,558.40

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Solution

The fourth proportional to 56,678.08, 84,999.84 and 45,558.40 is: 68,323.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,678.08 : 84,999.84 = 45,558.40 : x
  2. Step 2: Convert to fraction form
    56,678.08/84,999.84 = 45,558.40/x
  3. Step 3: Cross multiply
    56,678.08x = 84,999.84 × 45,558.40
  4. Step 4: Simplify right side
    56,678.08x = 3,872,456,710.66
  5. Step 5: Solve for x
    x = 3,872,456,710.66/56,678.08
  6. Step 6: Final answer
    x = 68,323.71

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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.