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Finding the Fourth Proportional to 52,188, 72,017.34 and 28,313.76

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Solution

The fourth proportional to 52,188, 72,017.34 and 28,313.76 is: 39,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,188 : 72,017.34 = 28,313.76 : x
  2. Step 2: Convert to fraction form
    52,188/72,017.34 = 28,313.76/x
  3. Step 3: Cross multiply
    52,188x = 72,017.34 × 28,313.76
  4. Step 4: Simplify right side
    52,188x = 2,039,081,680.60
  5. Step 5: Solve for x
    x = 2,039,081,680.60/52,188
  6. Step 6: Final answer
    x = 39,071.85

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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.