Home / 88,722.51-122,437.34-56,891.53

Finding the Fourth Proportional to 88,722.51, 122,437.34 and 56,891.53

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Solution

The fourth proportional to 88,722.51, 122,437.34 and 56,891.53 is: 78,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,722.51 : 122,437.34 = 56,891.53 : x
  2. Step 2: Convert to fraction form
    88,722.51/122,437.34 = 56,891.53/x
  3. Step 3: Cross multiply
    88,722.51x = 122,437.34 × 56,891.53
  4. Step 4: Simplify right side
    88,722.51x = 6,965,647,601.73
  5. Step 5: Solve for x
    x = 6,965,647,601.73/88,722.51
  6. Step 6: Final answer
    x = 78,510.49

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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.