Home / 86,212.16-118,972.32-48,485.60

Finding the Fourth Proportional to 86,212.16, 118,972.32 and 48,485.60

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Solution

The fourth proportional to 86,212.16, 118,972.32 and 48,485.60 is: 66,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,212.16 : 118,972.32 = 48,485.60 : x
  2. Step 2: Convert to fraction form
    86,212.16/118,972.32 = 48,485.60/x
  3. Step 3: Cross multiply
    86,212.16x = 118,972.32 × 48,485.60
  4. Step 4: Simplify right side
    86,212.16x = 5,768,444,318.59
  5. Step 5: Solve for x
    x = 5,768,444,318.59/86,212.16
  6. Step 6: Final answer
    x = 66,909.87

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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.