Home / 79,621.77-109,895.72-62,359.77

Finding the Fourth Proportional to 79,621.77, 109,895.72 and 62,359.77

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Solution

The fourth proportional to 79,621.77, 109,895.72 and 62,359.77 is: 86,070.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,621.77 : 109,895.72 = 62,359.77 : x
  2. Step 2: Convert to fraction form
    79,621.77/109,895.72 = 62,359.77/x
  3. Step 3: Cross multiply
    79,621.77x = 109,895.72 × 62,359.77
  4. Step 4: Simplify right side
    79,621.77x = 6,853,071,511.39
  5. Step 5: Solve for x
    x = 6,853,071,511.39/79,621.77
  6. Step 6: Final answer
    x = 86,070.32

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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.