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Finding the Fourth Proportional to 84,023.76, 115,951.42 and 45,783.77

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Solution

The fourth proportional to 84,023.76, 115,951.42 and 45,783.77 is: 63,180.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,023.76 : 115,951.42 = 45,783.77 : x
  2. Step 2: Convert to fraction form
    84,023.76/115,951.42 = 45,783.77/x
  3. Step 3: Cross multiply
    84,023.76x = 115,951.42 × 45,783.77
  4. Step 4: Simplify right side
    84,023.76x = 5,308,692,450.24
  5. Step 5: Solve for x
    x = 5,308,692,450.24/84,023.76
  6. Step 6: Final answer
    x = 63,180.85

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1.5x scale

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.