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Finding the Fourth Proportional to 52,235.80, 78,404.90 and 25,970.20

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Solution

The fourth proportional to 52,235.80, 78,404.90 and 25,970.20 is: 38,980.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,235.80 : 78,404.90 = 25,970.20 : x
  2. Step 2: Convert to fraction form
    52,235.80/78,404.90 = 25,970.20/x
  3. Step 3: Cross multiply
    52,235.80x = 78,404.90 × 25,970.20
  4. Step 4: Simplify right side
    52,235.80x = 2,036,190,933.98
  5. Step 5: Solve for x
    x = 2,036,190,933.98/52,235.80
  6. Step 6: Final answer
    x = 38,980.76

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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.