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Finding the Fourth Proportional to 84,734.70, 127,227.60 and 47,369.40

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Solution

The fourth proportional to 84,734.70, 127,227.60 and 47,369.40 is: 71,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,734.70 : 127,227.60 = 47,369.40 : x
  2. Step 2: Convert to fraction form
    84,734.70/127,227.60 = 47,369.40/x
  3. Step 3: Cross multiply
    84,734.70x = 127,227.60 × 47,369.40
  4. Step 4: Simplify right side
    84,734.70x = 6,026,695,075.44
  5. Step 5: Solve for x
    x = 6,026,695,075.44/84,734.70
  6. Step 6: Final answer
    x = 71,124.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.