Home / 86,623.48-129,830.58-42,183.64

Finding the Fourth Proportional to 86,623.48, 129,830.58 and 42,183.64

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Solution

The fourth proportional to 86,623.48, 129,830.58 and 42,183.64 is: 63,224.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,623.48 : 129,830.58 = 42,183.64 : x
  2. Step 2: Convert to fraction form
    86,623.48/129,830.58 = 42,183.64/x
  3. Step 3: Cross multiply
    86,623.48x = 129,830.58 × 42,183.64
  4. Step 4: Simplify right side
    86,623.48x = 5,476,726,447.71
  5. Step 5: Solve for x
    x = 5,476,726,447.71/86,623.48
  6. Step 6: Final answer
    x = 63,224.50

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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.