Home / 74,728.28-102,915.06-73,095.32

Finding the Fourth Proportional to 74,728.28, 102,915.06 and 73,095.32

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Solution

The fourth proportional to 74,728.28, 102,915.06 and 73,095.32 is: 100,666.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,728.28 : 102,915.06 = 73,095.32 : x
  2. Step 2: Convert to fraction form
    74,728.28/102,915.06 = 73,095.32/x
  3. Step 3: Cross multiply
    74,728.28x = 102,915.06 × 73,095.32
  4. Step 4: Simplify right side
    74,728.28x = 7,522,608,728.94
  5. Step 5: Solve for x
    x = 7,522,608,728.94/74,728.28
  6. Step 6: Final answer
    x = 100,666.16

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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.