Home / 52,621.50-78,945.93-15,685.50

Finding the Fourth Proportional to 52,621.50, 78,945.93 and 15,685.50

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Solution

The fourth proportional to 52,621.50, 78,945.93 and 15,685.50 is: 23,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,621.50 : 78,945.93 = 15,685.50 : x
  2. Step 2: Convert to fraction form
    52,621.50/78,945.93 = 15,685.50/x
  3. Step 3: Cross multiply
    52,621.50x = 78,945.93 × 15,685.50
  4. Step 4: Simplify right side
    52,621.50x = 1,238,306,385.02
  5. Step 5: Solve for x
    x = 1,238,306,385.02/52,621.50
  6. Step 6: Final answer
    x = 23,532.33

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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.