Home / 115,284.62-172,980.39-48,740.28

Finding the Fourth Proportional to 115,284.62, 172,980.39 and 48,740.28

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Solution

The fourth proportional to 115,284.62, 172,980.39 and 48,740.28 is: 73,133.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,284.62 : 172,980.39 = 48,740.28 : x
  2. Step 2: Convert to fraction form
    115,284.62/172,980.39 = 48,740.28/x
  3. Step 3: Cross multiply
    115,284.62x = 172,980.39 × 48,740.28
  4. Step 4: Simplify right side
    115,284.62x = 8,431,112,643.11
  5. Step 5: Solve for x
    x = 8,431,112,643.11/115,284.62
  6. Step 6: Final answer
    x = 73,133.03

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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.