Home / 54,043.76-74,580.72-31,384.28

Finding the Fourth Proportional to 54,043.76, 74,580.72 and 31,384.28

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Solution

The fourth proportional to 54,043.76, 74,580.72 and 31,384.28 is: 43,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,043.76 : 74,580.72 = 31,384.28 : x
  2. Step 2: Convert to fraction form
    54,043.76/74,580.72 = 31,384.28/x
  3. Step 3: Cross multiply
    54,043.76x = 74,580.72 × 31,384.28
  4. Step 4: Simplify right side
    54,043.76x = 2,340,662,199.08
  5. Step 5: Solve for x
    x = 2,340,662,199.08/54,043.76
  6. Step 6: Final answer
    x = 43,310.50

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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.