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Finding the Fourth Proportional to 52,525.90, 78,793.71 and 20,928.34

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Solution

The fourth proportional to 52,525.90, 78,793.71 and 20,928.34 is: 31,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,525.90 : 78,793.71 = 20,928.34 : x
  2. Step 2: Convert to fraction form
    52,525.90/78,793.71 = 20,928.34/x
  3. Step 3: Cross multiply
    52,525.90x = 78,793.71 × 20,928.34
  4. Step 4: Simplify right side
    52,525.90x = 1,649,021,552.74
  5. Step 5: Solve for x
    x = 1,649,021,552.74/52,525.90
  6. Step 6: Final answer
    x = 31,394.45

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1.5x scale

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.