Home / 74,349.43-111,528.47-21,036.94

Finding the Fourth Proportional to 74,349.43, 111,528.47 and 21,036.94

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Solution

The fourth proportional to 74,349.43, 111,528.47 and 21,036.94 is: 31,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,349.43 : 111,528.47 = 21,036.94 : x
  2. Step 2: Convert to fraction form
    74,349.43/111,528.47 = 21,036.94/x
  3. Step 3: Cross multiply
    74,349.43x = 111,528.47 × 21,036.94
  4. Step 4: Simplify right side
    74,349.43x = 2,346,218,063.10
  5. Step 5: Solve for x
    x = 2,346,218,063.10/74,349.43
  6. Step 6: Final answer
    x = 31,556.64

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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.