Home / 54,971.16-75,860.20-31,097.32

Finding the Fourth Proportional to 54,971.16, 75,860.20 and 31,097.32

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Solution

The fourth proportional to 54,971.16, 75,860.20 and 31,097.32 is: 42,914.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,971.16 : 75,860.20 = 31,097.32 : x
  2. Step 2: Convert to fraction form
    54,971.16/75,860.20 = 31,097.32/x
  3. Step 3: Cross multiply
    54,971.16x = 75,860.20 × 31,097.32
  4. Step 4: Simplify right side
    54,971.16x = 2,359,048,588.96
  5. Step 5: Solve for x
    x = 2,359,048,588.96/54,971.16
  6. Step 6: Final answer
    x = 42,914.30

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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.