Home / 98,537.68-147,828.12-31,984.48

Finding the Fourth Proportional to 98,537.68, 147,828.12 and 31,984.48

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Solution

The fourth proportional to 98,537.68, 147,828.12 and 31,984.48 is: 47,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,537.68 : 147,828.12 = 31,984.48 : x
  2. Step 2: Convert to fraction form
    98,537.68/147,828.12 = 31,984.48/x
  3. Step 3: Cross multiply
    98,537.68x = 147,828.12 × 31,984.48
  4. Step 4: Simplify right side
    98,537.68x = 4,728,205,547.58
  5. Step 5: Solve for x
    x = 4,728,205,547.58/98,537.68
  6. Step 6: Final answer
    x = 47,983.73

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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.