Home / 77,348.63-116,023.05-21,189.23

Finding the Fourth Proportional to 77,348.63, 116,023.05 and 21,189.23

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Solution

The fourth proportional to 77,348.63, 116,023.05 and 21,189.23 is: 31,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,348.63 : 116,023.05 = 21,189.23 : x
  2. Step 2: Convert to fraction form
    77,348.63/116,023.05 = 21,189.23/x
  3. Step 3: Cross multiply
    77,348.63x = 116,023.05 × 21,189.23
  4. Step 4: Simplify right side
    77,348.63x = 2,458,438,946.72
  5. Step 5: Solve for x
    x = 2,458,438,946.72/77,348.63
  6. Step 6: Final answer
    x = 31,783.87

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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.