Home / 63,415.40-87,430.26-54,558.04

Finding the Fourth Proportional to 63,415.40, 87,430.26 and 54,558.04

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Solution

The fourth proportional to 63,415.40, 87,430.26 and 54,558.04 is: 75,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,415.40 : 87,430.26 = 54,558.04 : x
  2. Step 2: Convert to fraction form
    63,415.40/87,430.26 = 54,558.04/x
  3. Step 3: Cross multiply
    63,415.40x = 87,430.26 × 54,558.04
  4. Step 4: Simplify right side
    63,415.40x = 4,770,023,622.29
  5. Step 5: Solve for x
    x = 4,770,023,622.29/63,415.40
  6. Step 6: Final answer
    x = 75,218.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.