Home / 81,946.69-113,088.63-46,138.06

Finding the Fourth Proportional to 81,946.69, 113,088.63 and 46,138.06

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Solution

The fourth proportional to 81,946.69, 113,088.63 and 46,138.06 is: 63,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,946.69 : 113,088.63 = 46,138.06 : x
  2. Step 2: Convert to fraction form
    81,946.69/113,088.63 = 46,138.06/x
  3. Step 3: Cross multiply
    81,946.69x = 113,088.63 × 46,138.06
  4. Step 4: Simplify right side
    81,946.69x = 5,217,689,996.26
  5. Step 5: Solve for x
    x = 5,217,689,996.26/81,946.69
  6. Step 6: Final answer
    x = 63,671.76

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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.