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Finding the Fourth Proportional to 65,271.80, 97,907.70 and 43,110.20

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Solution

The fourth proportional to 65,271.80, 97,907.70 and 43,110.20 is: 64,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,271.80 : 97,907.70 = 43,110.20 : x
  2. Step 2: Convert to fraction form
    65,271.80/97,907.70 = 43,110.20/x
  3. Step 3: Cross multiply
    65,271.80x = 97,907.70 × 43,110.20
  4. Step 4: Simplify right side
    65,271.80x = 4,220,820,528.54
  5. Step 5: Solve for x
    x = 4,220,820,528.54/65,271.80
  6. Step 6: Final answer
    x = 64,665.30

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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.