Home / 98,628.78-136,069.47-62,812.38

Finding the Fourth Proportional to 98,628.78, 136,069.47 and 62,812.38

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Solution

The fourth proportional to 98,628.78, 136,069.47 and 62,812.38 is: 86,656.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,628.78 : 136,069.47 = 62,812.38 : x
  2. Step 2: Convert to fraction form
    98,628.78/136,069.47 = 62,812.38/x
  3. Step 3: Cross multiply
    98,628.78x = 136,069.47 × 62,812.38
  4. Step 4: Simplify right side
    98,628.78x = 8,546,847,256.04
  5. Step 5: Solve for x
    x = 8,546,847,256.04/98,628.78
  6. Step 6: Final answer
    x = 86,656.73

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1.5x scale

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.