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Finding the Fourth Proportional to 101,893.70, 152,840.55 and 28,021.70

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Solution

The fourth proportional to 101,893.70, 152,840.55 and 28,021.70 is: 42,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,893.70 : 152,840.55 = 28,021.70 : x
  2. Step 2: Convert to fraction form
    101,893.70/152,840.55 = 28,021.70/x
  3. Step 3: Cross multiply
    101,893.70x = 152,840.55 × 28,021.70
  4. Step 4: Simplify right side
    101,893.70x = 4,282,852,039.94
  5. Step 5: Solve for x
    x = 4,282,852,039.94/101,893.70
  6. Step 6: Final answer
    x = 42,032.55

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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.