Home / 77,579.49-116,369.06-20,653.41

Finding the Fourth Proportional to 77,579.49, 116,369.06 and 20,653.41

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Solution

The fourth proportional to 77,579.49, 116,369.06 and 20,653.41 is: 30,980.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,579.49 : 116,369.06 = 20,653.41 : x
  2. Step 2: Convert to fraction form
    77,579.49/116,369.06 = 20,653.41/x
  3. Step 3: Cross multiply
    77,579.49x = 116,369.06 × 20,653.41
  4. Step 4: Simplify right side
    77,579.49x = 2,403,417,907.49
  5. Step 5: Solve for x
    x = 2,403,417,907.49/77,579.49
  6. Step 6: Final answer
    x = 30,980.07

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1.5x scale

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.