Home / 90,915.40-136,406-46,563.04

Finding the Fourth Proportional to 90,915.40, 136,406 and 46,563.04

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Solution

The fourth proportional to 90,915.40, 136,406 and 46,563.04 is: 69,861.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,915.40 : 136,406 = 46,563.04 : x
  2. Step 2: Convert to fraction form
    90,915.40/136,406 = 46,563.04/x
  3. Step 3: Cross multiply
    90,915.40x = 136,406 × 46,563.04
  4. Step 4: Simplify right side
    90,915.40x = 6,351,478,034.24
  5. Step 5: Solve for x
    x = 6,351,478,034.24/90,915.40
  6. Step 6: Final answer
    x = 69,861.41

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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.