Home / 52,840.50-72,920.43-31,623.90

Finding the Fourth Proportional to 52,840.50, 72,920.43 and 31,623.90

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Solution

The fourth proportional to 52,840.50, 72,920.43 and 31,623.90 is: 43,641.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,840.50 : 72,920.43 = 31,623.90 : x
  2. Step 2: Convert to fraction form
    52,840.50/72,920.43 = 31,623.90/x
  3. Step 3: Cross multiply
    52,840.50x = 72,920.43 × 31,623.90
  4. Step 4: Simplify right side
    52,840.50x = 2,306,028,386.28
  5. Step 5: Solve for x
    x = 2,306,028,386.28/52,840.50
  6. Step 6: Final answer
    x = 43,641.31

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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.