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Finding the Fourth Proportional to 51,051.80, 70,420.20 and 35,917.76

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Solution

The fourth proportional to 51,051.80, 70,420.20 and 35,917.76 is: 49,544.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,051.80 : 70,420.20 = 35,917.76 : x
  2. Step 2: Convert to fraction form
    51,051.80/70,420.20 = 35,917.76/x
  3. Step 3: Cross multiply
    51,051.80x = 70,420.20 × 35,917.76
  4. Step 4: Simplify right side
    51,051.80x = 2,529,335,842.75
  5. Step 5: Solve for x
    x = 2,529,335,842.75/51,051.80
  6. Step 6: Final answer
    x = 49,544.50

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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.