Home / 86,673.12-119,603.43-48,429.78

Finding the Fourth Proportional to 86,673.12, 119,603.43 and 48,429.78

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Solution

The fourth proportional to 86,673.12, 119,603.43 and 48,429.78 is: 66,830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,673.12 : 119,603.43 = 48,429.78 : x
  2. Step 2: Convert to fraction form
    86,673.12/119,603.43 = 48,429.78/x
  3. Step 3: Cross multiply
    86,673.12x = 119,603.43 × 48,429.78
  4. Step 4: Simplify right side
    86,673.12x = 5,792,367,802.15
  5. Step 5: Solve for x
    x = 5,792,367,802.15/86,673.12
  6. Step 6: Final answer
    x = 66,830.04

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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.