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Finding the Fourth Proportional to 71,352.70, 98,467.40 and 39,088.07

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Solution

The fourth proportional to 71,352.70, 98,467.40 and 39,088.07 is: 53,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,352.70 : 98,467.40 = 39,088.07 : x
  2. Step 2: Convert to fraction form
    71,352.70/98,467.40 = 39,088.07/x
  3. Step 3: Cross multiply
    71,352.70x = 98,467.40 × 39,088.07
  4. Step 4: Simplify right side
    71,352.70x = 3,848,900,378.68
  5. Step 5: Solve for x
    x = 3,848,900,378.68/71,352.70
  6. Step 6: Final answer
    x = 53,941.90

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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.