Home / 86,915.75-130,457.88-41,968.79

Finding the Fourth Proportional to 86,915.75, 130,457.88 and 41,968.79

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Solution

The fourth proportional to 86,915.75, 130,457.88 and 41,968.79 is: 62,993.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,915.75 : 130,457.88 = 41,968.79 : x
  2. Step 2: Convert to fraction form
    86,915.75/130,457.88 = 41,968.79/x
  3. Step 3: Cross multiply
    86,915.75x = 130,457.88 × 41,968.79
  4. Step 4: Simplify right side
    86,915.75x = 5,475,158,717.28
  5. Step 5: Solve for x
    x = 5,475,158,717.28/86,915.75
  6. Step 6: Final answer
    x = 62,993.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.