Home / 77,954.48-116,949-36,378.80

Finding the Fourth Proportional to 77,954.48, 116,949 and 36,378.80

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Solution

The fourth proportional to 77,954.48, 116,949 and 36,378.80 is: 54,576.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,954.48 : 116,949 = 36,378.80 : x
  2. Step 2: Convert to fraction form
    77,954.48/116,949 = 36,378.80/x
  3. Step 3: Cross multiply
    77,954.48x = 116,949 × 36,378.80
  4. Step 4: Simplify right side
    77,954.48x = 4,254,464,281.20
  5. Step 5: Solve for x
    x = 4,254,464,281.20/77,954.48
  6. Step 6: Final answer
    x = 54,576.26

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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.