Home / 47,870.26-71,772.08-21,201.77

Finding the Fourth Proportional to 47,870.26, 71,772.08 and 21,201.77

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Solution

The fourth proportional to 47,870.26, 71,772.08 and 21,201.77 is: 31,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,870.26 : 71,772.08 = 21,201.77 : x
  2. Step 2: Convert to fraction form
    47,870.26/71,772.08 = 21,201.77/x
  3. Step 3: Cross multiply
    47,870.26x = 71,772.08 × 21,201.77
  4. Step 4: Simplify right side
    47,870.26x = 1,521,695,285.51
  5. Step 5: Solve for x
    x = 1,521,695,285.51/47,870.26
  6. Step 6: Final answer
    x = 31,787.90

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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.