Home / 84,764.34-116,979.39-47,039.40

Finding the Fourth Proportional to 84,764.34, 116,979.39 and 47,039.40

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Solution

The fourth proportional to 84,764.34, 116,979.39 and 47,039.40 is: 64,916.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,764.34 : 116,979.39 = 47,039.40 : x
  2. Step 2: Convert to fraction form
    84,764.34/116,979.39 = 47,039.40/x
  3. Step 3: Cross multiply
    84,764.34x = 116,979.39 × 47,039.40
  4. Step 4: Simplify right side
    84,764.34x = 5,502,640,317.97
  5. Step 5: Solve for x
    x = 5,502,640,317.97/84,764.34
  6. Step 6: Final answer
    x = 64,916.93

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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.