Home / 71,070.45-98,076.57-39,238.65

Finding the Fourth Proportional to 71,070.45, 98,076.57 and 39,238.65

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Solution

The fourth proportional to 71,070.45, 98,076.57 and 39,238.65 is: 54,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,070.45 : 98,076.57 = 39,238.65 : x
  2. Step 2: Convert to fraction form
    71,070.45/98,076.57 = 39,238.65/x
  3. Step 3: Cross multiply
    71,070.45x = 98,076.57 × 39,238.65
  4. Step 4: Simplify right side
    71,070.45x = 3,848,392,203.43
  5. Step 5: Solve for x
    x = 3,848,392,203.43/71,070.45
  6. Step 6: Final answer
    x = 54,148.98

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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.