Home / 71,438.08-98,586.84-39,609.94

Finding the Fourth Proportional to 71,438.08, 98,586.84 and 39,609.94

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Solution

The fourth proportional to 71,438.08, 98,586.84 and 39,609.94 is: 54,662.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,438.08 : 98,586.84 = 39,609.94 : x
  2. Step 2: Convert to fraction form
    71,438.08/98,586.84 = 39,609.94/x
  3. Step 3: Cross multiply
    71,438.08x = 98,586.84 × 39,609.94
  4. Step 4: Simplify right side
    71,438.08x = 3,905,018,817.19
  5. Step 5: Solve for x
    x = 3,905,018,817.19/71,438.08
  6. Step 6: Final answer
    x = 54,662.99

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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.