Home / 71,464.90-98,615.10-39,633.70

Finding the Fourth Proportional to 71,464.90, 98,615.10 and 39,633.70

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Solution

The fourth proportional to 71,464.90, 98,615.10 and 39,633.70 is: 54,690.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,464.90 : 98,615.10 = 39,633.70 : x
  2. Step 2: Convert to fraction form
    71,464.90/98,615.10 = 39,633.70/x
  3. Step 3: Cross multiply
    71,464.90x = 98,615.10 × 39,633.70
  4. Step 4: Simplify right side
    71,464.90x = 3,908,481,288.87
  5. Step 5: Solve for x
    x = 3,908,481,288.87/71,464.90
  6. Step 6: Final answer
    x = 54,690.92

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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.