Home / 85,550.58-128,323.68-23,219.46

Finding the Fourth Proportional to 85,550.58, 128,323.68 and 23,219.46

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Solution

The fourth proportional to 85,550.58, 128,323.68 and 23,219.46 is: 34,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,550.58 : 128,323.68 = 23,219.46 : x
  2. Step 2: Convert to fraction form
    85,550.58/128,323.68 = 23,219.46/x
  3. Step 3: Cross multiply
    85,550.58x = 128,323.68 × 23,219.46
  4. Step 4: Simplify right side
    85,550.58x = 2,979,606,554.81
  5. Step 5: Solve for x
    x = 2,979,606,554.81/85,550.58
  6. Step 6: Final answer
    x = 34,828.60

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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.