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Finding the Fourth Proportional to 77,374.71, 106,081.74 and 75,975.03

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Solution

The fourth proportional to 77,374.71, 106,081.74 and 75,975.03 is: 104,162.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,374.71 : 106,081.74 = 75,975.03 : x
  2. Step 2: Convert to fraction form
    77,374.71/106,081.74 = 75,975.03/x
  3. Step 3: Cross multiply
    77,374.71x = 106,081.74 × 75,975.03
  4. Step 4: Simplify right side
    77,374.71x = 8,059,563,378.95
  5. Step 5: Solve for x
    x = 8,059,563,378.95/77,374.71
  6. Step 6: Final answer
    x = 104,162.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.