Home / 98,020.71-147,050.22-31,455.72

Finding the Fourth Proportional to 98,020.71, 147,050.22 and 31,455.72

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Solution

The fourth proportional to 98,020.71, 147,050.22 and 31,455.72 is: 47,189.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,020.71 : 147,050.22 = 31,455.72 : x
  2. Step 2: Convert to fraction form
    98,020.71/147,050.22 = 31,455.72/x
  3. Step 3: Cross multiply
    98,020.71x = 147,050.22 × 31,455.72
  4. Step 4: Simplify right side
    98,020.71x = 4,625,570,388.98
  5. Step 5: Solve for x
    x = 4,625,570,388.98/98,020.71
  6. Step 6: Final answer
    x = 47,189.73

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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.