Home / 98,560.44-147,823.38-31,990.86

Finding the Fourth Proportional to 98,560.44, 147,823.38 and 31,990.86

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Solution

The fourth proportional to 98,560.44, 147,823.38 and 31,990.86 is: 47,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,560.44 : 147,823.38 = 31,990.86 : x
  2. Step 2: Convert to fraction form
    98,560.44/147,823.38 = 31,990.86/x
  3. Step 3: Cross multiply
    98,560.44x = 147,823.38 × 31,990.86
  4. Step 4: Simplify right side
    98,560.44x = 4,728,997,054.31
  5. Step 5: Solve for x
    x = 4,728,997,054.31/98,560.44
  6. Step 6: Final answer
    x = 47,980.68

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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.