Home / 86,418.09-119,291.36-74,270.52

Finding the Fourth Proportional to 86,418.09, 119,291.36 and 74,270.52

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Solution

The fourth proportional to 86,418.09, 119,291.36 and 74,270.52 is: 102,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,418.09 : 119,291.36 = 74,270.52 : x
  2. Step 2: Convert to fraction form
    86,418.09/119,291.36 = 74,270.52/x
  3. Step 3: Cross multiply
    86,418.09x = 119,291.36 × 74,270.52
  4. Step 4: Simplify right side
    86,418.09x = 8,859,830,967.35
  5. Step 5: Solve for x
    x = 8,859,830,967.35/86,418.09
  6. Step 6: Final answer
    x = 102,522.87

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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.