Home / 74,935.34-112,400.36-18,775.92

Finding the Fourth Proportional to 74,935.34, 112,400.36 and 18,775.92

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Solution

The fourth proportional to 74,935.34, 112,400.36 and 18,775.92 is: 28,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,935.34 : 112,400.36 = 18,775.92 : x
  2. Step 2: Convert to fraction form
    74,935.34/112,400.36 = 18,775.92/x
  3. Step 3: Cross multiply
    74,935.34x = 112,400.36 × 18,775.92
  4. Step 4: Simplify right side
    74,935.34x = 2,110,420,167.33
  5. Step 5: Solve for x
    x = 2,110,420,167.33/74,935.34
  6. Step 6: Final answer
    x = 28,163.22

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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.