Home / 52,433.58-78,660.64-20,837.74

Finding the Fourth Proportional to 52,433.58, 78,660.64 and 20,837.74

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Solution

The fourth proportional to 52,433.58, 78,660.64 and 20,837.74 is: 31,260.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,433.58 : 78,660.64 = 20,837.74 : x
  2. Step 2: Convert to fraction form
    52,433.58/78,660.64 = 20,837.74/x
  3. Step 3: Cross multiply
    52,433.58x = 78,660.64 × 20,837.74
  4. Step 4: Simplify right side
    52,433.58x = 1,639,110,331.89
  5. Step 5: Solve for x
    x = 1,639,110,331.89/52,433.58
  6. Step 6: Final answer
    x = 31,260.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.