Home / 105,571.26-145,688.36-57,826.32

Finding the Fourth Proportional to 105,571.26, 145,688.36 and 57,826.32

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Solution

The fourth proportional to 105,571.26, 145,688.36 and 57,826.32 is: 79,800.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,571.26 : 145,688.36 = 57,826.32 : x
  2. Step 2: Convert to fraction form
    105,571.26/145,688.36 = 57,826.32/x
  3. Step 3: Cross multiply
    105,571.26x = 145,688.36 × 57,826.32
  4. Step 4: Simplify right side
    105,571.26x = 8,424,621,725.64
  5. Step 5: Solve for x
    x = 8,424,621,725.64/105,571.26
  6. Step 6: Final answer
    x = 79,800.33

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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.