Home / 86,638.50-119,561.16-48,915.18

Finding the Fourth Proportional to 86,638.50, 119,561.16 and 48,915.18

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Solution

The fourth proportional to 86,638.50, 119,561.16 and 48,915.18 is: 67,502.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,638.50 : 119,561.16 = 48,915.18 : x
  2. Step 2: Convert to fraction form
    86,638.50/119,561.16 = 48,915.18/x
  3. Step 3: Cross multiply
    86,638.50x = 119,561.16 × 48,915.18
  4. Step 4: Simplify right side
    86,638.50x = 5,848,355,662.41
  5. Step 5: Solve for x
    x = 5,848,355,662.41/86,638.50
  6. Step 6: Final answer
    x = 67,502.97

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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.