Home / 98,641.46-136,018.20-62,785.64

Finding the Fourth Proportional to 98,641.46, 136,018.20 and 62,785.64

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Solution

The fourth proportional to 98,641.46, 136,018.20 and 62,785.64 is: 86,576.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,641.46 : 136,018.20 = 62,785.64 : x
  2. Step 2: Convert to fraction form
    98,641.46/136,018.20 = 62,785.64/x
  3. Step 3: Cross multiply
    98,641.46x = 136,018.20 × 62,785.64
  4. Step 4: Simplify right side
    98,641.46x = 8,539,989,738.65
  5. Step 5: Solve for x
    x = 8,539,989,738.65/98,641.46
  6. Step 6: Final answer
    x = 86,576.07

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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.