Home / 83,919.08-115,811.26-45,681.77

Finding the Fourth Proportional to 83,919.08, 115,811.26 and 45,681.77

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Solution

The fourth proportional to 83,919.08, 115,811.26 and 45,681.77 is: 63,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,919.08 : 115,811.26 = 45,681.77 : x
  2. Step 2: Convert to fraction form
    83,919.08/115,811.26 = 45,681.77/x
  3. Step 3: Cross multiply
    83,919.08x = 115,811.26 × 45,681.77
  4. Step 4: Simplify right side
    83,919.08x = 5,290,463,518.05
  5. Step 5: Solve for x
    x = 5,290,463,518.05/83,919.08
  6. Step 6: Final answer
    x = 63,042.44

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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.