Home / 53,972.60-74,491.18-31,330.40

Finding the Fourth Proportional to 53,972.60, 74,491.18 and 31,330.40

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Solution

The fourth proportional to 53,972.60, 74,491.18 and 31,330.40 is: 43,241.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,972.60 : 74,491.18 = 31,330.40 : x
  2. Step 2: Convert to fraction form
    53,972.60/74,491.18 = 31,330.40/x
  3. Step 3: Cross multiply
    53,972.60x = 74,491.18 × 31,330.40
  4. Step 4: Simplify right side
    53,972.60x = 2,333,838,015.09
  5. Step 5: Solve for x
    x = 2,333,838,015.09/53,972.60
  6. Step 6: Final answer
    x = 43,241.17

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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.