Home / 86,012.20-118,693.38-48,285.64

Finding the Fourth Proportional to 86,012.20, 118,693.38 and 48,285.64

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Solution

The fourth proportional to 86,012.20, 118,693.38 and 48,285.64 is: 66,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,012.20 : 118,693.38 = 48,285.64 : x
  2. Step 2: Convert to fraction form
    86,012.20/118,693.38 = 48,285.64/x
  3. Step 3: Cross multiply
    86,012.20x = 118,693.38 × 48,285.64
  4. Step 4: Simplify right side
    86,012.20x = 5,731,185,817.06
  5. Step 5: Solve for x
    x = 5,731,185,817.06/86,012.20
  6. Step 6: Final answer
    x = 66,632.24

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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.