Home / 97,979.57-146,954.64-31,410.71

Finding the Fourth Proportional to 97,979.57, 146,954.64 and 31,410.71

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Solution

The fourth proportional to 97,979.57, 146,954.64 and 31,410.71 is: 47,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,979.57 : 146,954.64 = 31,410.71 : x
  2. Step 2: Convert to fraction form
    97,979.57/146,954.64 = 31,410.71/x
  3. Step 3: Cross multiply
    97,979.57x = 146,954.64 × 31,410.71
  4. Step 4: Simplify right side
    97,979.57x = 4,615,949,580.19
  5. Step 5: Solve for x
    x = 4,615,949,580.19/97,979.57
  6. Step 6: Final answer
    x = 47,111.35

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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.