Home / 84,838.41-127,257.99-28,678.81

Finding the Fourth Proportional to 84,838.41, 127,257.99 and 28,678.81

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Solution

The fourth proportional to 84,838.41, 127,257.99 and 28,678.81 is: 43,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,838.41 : 127,257.99 = 28,678.81 : x
  2. Step 2: Convert to fraction form
    84,838.41/127,257.99 = 28,678.81/x
  3. Step 3: Cross multiply
    84,838.41x = 127,257.99 × 28,678.81
  4. Step 4: Simplify right side
    84,838.41x = 3,649,607,529.11
  5. Step 5: Solve for x
    x = 3,649,607,529.11/84,838.41
  6. Step 6: Final answer
    x = 43,018.34

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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.