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Finding the Fourth Proportional to 52,003.40, 78,005.10 and 25,759.40

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Solution

The fourth proportional to 52,003.40, 78,005.10 and 25,759.40 is: 38,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,003.40 : 78,005.10 = 25,759.40 : x
  2. Step 2: Convert to fraction form
    52,003.40/78,005.10 = 25,759.40/x
  3. Step 3: Cross multiply
    52,003.40x = 78,005.10 × 25,759.40
  4. Step 4: Simplify right side
    52,003.40x = 2,009,364,572.94
  5. Step 5: Solve for x
    x = 2,009,364,572.94/52,003.40
  6. Step 6: Final answer
    x = 38,639.10

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Similar ratio
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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.