Home / 98,538.18-147,828.87-31,984.98

Finding the Fourth Proportional to 98,538.18, 147,828.87 and 31,984.98

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Solution

The fourth proportional to 98,538.18, 147,828.87 and 31,984.98 is: 47,984.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,538.18 : 147,828.87 = 31,984.98 : x
  2. Step 2: Convert to fraction form
    98,538.18/147,828.87 = 31,984.98/x
  3. Step 3: Cross multiply
    98,538.18x = 147,828.87 × 31,984.98
  4. Step 4: Simplify right side
    98,538.18x = 4,728,303,450.37
  5. Step 5: Solve for x
    x = 4,728,303,450.37/98,538.18
  6. Step 6: Final answer
    x = 47,984.48

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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.