Home / 77,291.74-115,739.25-53,565.49

Finding the Fourth Proportional to 77,291.74, 115,739.25 and 53,565.49

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Solution

The fourth proportional to 77,291.74, 115,739.25 and 53,565.49 is: 80,210.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,291.74 : 115,739.25 = 53,565.49 : x
  2. Step 2: Convert to fraction form
    77,291.74/115,739.25 = 53,565.49/x
  3. Step 3: Cross multiply
    77,291.74x = 115,739.25 × 53,565.49
  4. Step 4: Simplify right side
    77,291.74x = 6,199,629,638.48
  5. Step 5: Solve for x
    x = 6,199,629,638.48/77,291.74
  6. Step 6: Final answer
    x = 80,210.77

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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.