Home / 58,728.09-81,044.33-31,869.90

Finding the Fourth Proportional to 58,728.09, 81,044.33 and 31,869.90

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Solution

The fourth proportional to 58,728.09, 81,044.33 and 31,869.90 is: 43,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,728.09 : 81,044.33 = 31,869.90 : x
  2. Step 2: Convert to fraction form
    58,728.09/81,044.33 = 31,869.90/x
  3. Step 3: Cross multiply
    58,728.09x = 81,044.33 × 31,869.90
  4. Step 4: Simplify right side
    58,728.09x = 2,582,874,533.32
  5. Step 5: Solve for x
    x = 2,582,874,533.32/58,728.09
  6. Step 6: Final answer
    x = 43,980.22

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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.