Home / 88,639.80-122,342.65-56,367.88

Finding the Fourth Proportional to 88,639.80, 122,342.65 and 56,367.88

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Solution

The fourth proportional to 88,639.80, 122,342.65 and 56,367.88 is: 77,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,639.80 : 122,342.65 = 56,367.88 : x
  2. Step 2: Convert to fraction form
    88,639.80/122,342.65 = 56,367.88/x
  3. Step 3: Cross multiply
    88,639.80x = 122,342.65 × 56,367.88
  4. Step 4: Simplify right side
    88,639.80x = 6,896,195,814.08
  5. Step 5: Solve for x
    x = 6,896,195,814.08/88,639.80
  6. Step 6: Final answer
    x = 77,800.22

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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.