Home / 71,315.06-98,407.96-42,629.02

Finding the Fourth Proportional to 71,315.06, 98,407.96 and 42,629.02

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Solution

The fourth proportional to 71,315.06, 98,407.96 and 42,629.02 is: 58,823.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,315.06 : 98,407.96 = 42,629.02 : x
  2. Step 2: Convert to fraction form
    71,315.06/98,407.96 = 42,629.02/x
  3. Step 3: Cross multiply
    71,315.06x = 98,407.96 × 42,629.02
  4. Step 4: Simplify right side
    71,315.06x = 4,195,034,895.00
  5. Step 5: Solve for x
    x = 4,195,034,895.00/71,315.06
  6. Step 6: Final answer
    x = 58,823.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.