Home / 98,421.90-147,656.22-31,862.04

Finding the Fourth Proportional to 98,421.90, 147,656.22 and 31,862.04

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Solution

The fourth proportional to 98,421.90, 147,656.22 and 31,862.04 is: 47,800.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,421.90 : 147,656.22 = 31,862.04 : x
  2. Step 2: Convert to fraction form
    98,421.90/147,656.22 = 31,862.04/x
  3. Step 3: Cross multiply
    98,421.90x = 147,656.22 × 31,862.04
  4. Step 4: Simplify right side
    98,421.90x = 4,704,628,387.89
  5. Step 5: Solve for x
    x = 4,704,628,387.89/98,421.90
  6. Step 6: Final answer
    x = 47,800.63

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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.