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Finding the Fourth Proportional to 72,395.40, 101,664.60 and 72,395.40

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Solution

The fourth proportional to 72,395.40, 101,664.60 and 72,395.40 is: 101,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,395.40 : 101,664.60 = 72,395.40 : x
  2. Step 2: Convert to fraction form
    72,395.40/101,664.60 = 72,395.40/x
  3. Step 3: Cross multiply
    72,395.40x = 101,664.60 × 72,395.40
  4. Step 4: Simplify right side
    72,395.40x = 7,360,049,382.84
  5. Step 5: Solve for x
    x = 7,360,049,382.84/72,395.40
  6. Step 6: Final answer
    x = 101,664.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.