Home / 74,216.80-102,417.24-40,223.80

Finding the Fourth Proportional to 74,216.80, 102,417.24 and 40,223.80

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Solution

The fourth proportional to 74,216.80, 102,417.24 and 40,223.80 is: 55,507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,216.80 : 102,417.24 = 40,223.80 : x
  2. Step 2: Convert to fraction form
    74,216.80/102,417.24 = 40,223.80/x
  3. Step 3: Cross multiply
    74,216.80x = 102,417.24 × 40,223.80
  4. Step 4: Simplify right side
    74,216.80x = 4,119,610,578.31
  5. Step 5: Solve for x
    x = 4,119,610,578.31/74,216.80
  6. Step 6: Final answer
    x = 55,507.79

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1.5x scale

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.