Home / 86,021.28-118,706.32-48,297.12

Finding the Fourth Proportional to 86,021.28, 118,706.32 and 48,297.12

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Solution

The fourth proportional to 86,021.28, 118,706.32 and 48,297.12 is: 66,648.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,021.28 : 118,706.32 = 48,297.12 : x
  2. Step 2: Convert to fraction form
    86,021.28/118,706.32 = 48,297.12/x
  3. Step 3: Cross multiply
    86,021.28x = 118,706.32 × 48,297.12
  4. Step 4: Simplify right side
    86,021.28x = 5,733,173,381.80
  5. Step 5: Solve for x
    x = 5,733,173,381.80/86,021.28
  6. Step 6: Final answer
    x = 66,648.32

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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.