Home / 79,403.76-109,578.93-45,415.35

Finding the Fourth Proportional to 79,403.76, 109,578.93 and 45,415.35

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Solution

The fourth proportional to 79,403.76, 109,578.93 and 45,415.35 is: 62,674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,403.76 : 109,578.93 = 45,415.35 : x
  2. Step 2: Convert to fraction form
    79,403.76/109,578.93 = 45,415.35/x
  3. Step 3: Cross multiply
    79,403.76x = 109,578.93 × 45,415.35
  4. Step 4: Simplify right side
    79,403.76x = 4,976,565,458.58
  5. Step 5: Solve for x
    x = 4,976,565,458.58/79,403.76
  6. Step 6: Final answer
    x = 62,674.18

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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.