Home / 52,785.91-72,844.58-28,912.98

Finding the Fourth Proportional to 52,785.91, 72,844.58 and 28,912.98

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Solution

The fourth proportional to 52,785.91, 72,844.58 and 28,912.98 is: 39,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,785.91 : 72,844.58 = 28,912.98 : x
  2. Step 2: Convert to fraction form
    52,785.91/72,844.58 = 28,912.98/x
  3. Step 3: Cross multiply
    52,785.91x = 72,844.58 × 28,912.98
  4. Step 4: Simplify right side
    52,785.91x = 2,106,153,740.08
  5. Step 5: Solve for x
    x = 2,106,153,740.08/52,785.91
  6. Step 6: Final answer
    x = 39,899.92

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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.