Home / 66,498.45-99,746.70-30,939.87

Finding the Fourth Proportional to 66,498.45, 99,746.70 and 30,939.87

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Solution

The fourth proportional to 66,498.45, 99,746.70 and 30,939.87 is: 46,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,498.45 : 99,746.70 = 30,939.87 : x
  2. Step 2: Convert to fraction form
    66,498.45/99,746.70 = 30,939.87/x
  3. Step 3: Cross multiply
    66,498.45x = 99,746.70 × 30,939.87
  4. Step 4: Simplify right side
    66,498.45x = 3,086,149,930.93
  5. Step 5: Solve for x
    x = 3,086,149,930.93/66,498.45
  6. Step 6: Final answer
    x = 46,409.35

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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.