Home / 77,399.16-116,098.86-21,240.03

Finding the Fourth Proportional to 77,399.16, 116,098.86 and 21,240.03

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Solution

The fourth proportional to 77,399.16, 116,098.86 and 21,240.03 is: 31,860.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,399.16 : 116,098.86 = 21,240.03 : x
  2. Step 2: Convert to fraction form
    77,399.16/116,098.86 = 21,240.03/x
  3. Step 3: Cross multiply
    77,399.16x = 116,098.86 × 21,240.03
  4. Step 4: Simplify right side
    77,399.16x = 2,465,943,269.37
  5. Step 5: Solve for x
    x = 2,465,943,269.37/77,399.16
  6. Step 6: Final answer
    x = 31,860.08

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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.