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Finding the Fourth Proportional to 52,187.70, 72,019.03 and 28,314.38

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Solution

The fourth proportional to 52,187.70, 72,019.03 and 28,314.38 is: 39,073.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,187.70 : 72,019.03 = 28,314.38 : x
  2. Step 2: Convert to fraction form
    52,187.70/72,019.03 = 28,314.38/x
  3. Step 3: Cross multiply
    52,187.70x = 72,019.03 × 28,314.38
  4. Step 4: Simplify right side
    52,187.70x = 2,039,174,019.53
  5. Step 5: Solve for x
    x = 2,039,174,019.53/52,187.70
  6. Step 6: Final answer
    x = 39,073.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.