Home / 52,061.60-78,091.71-12,619.06

Finding the Fourth Proportional to 52,061.60, 78,091.71 and 12,619.06

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Solution

The fourth proportional to 52,061.60, 78,091.71 and 12,619.06 is: 18,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,061.60 : 78,091.71 = 12,619.06 : x
  2. Step 2: Convert to fraction form
    52,061.60/78,091.71 = 12,619.06/x
  3. Step 3: Cross multiply
    52,061.60x = 78,091.71 × 12,619.06
  4. Step 4: Simplify right side
    52,061.60x = 985,443,973.99
  5. Step 5: Solve for x
    x = 985,443,973.99/52,061.60
  6. Step 6: Final answer
    x = 18,928.42

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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.