Home / 43,311.80-64,967.70-40,687.40

Finding the Fourth Proportional to 43,311.80, 64,967.70 and 40,687.40

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Solution

The fourth proportional to 43,311.80, 64,967.70 and 40,687.40 is: 61,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,311.80 : 64,967.70 = 40,687.40 : x
  2. Step 2: Convert to fraction form
    43,311.80/64,967.70 = 40,687.40/x
  3. Step 3: Cross multiply
    43,311.80x = 64,967.70 × 40,687.40
  4. Step 4: Simplify right side
    43,311.80x = 2,643,366,796.98
  5. Step 5: Solve for x
    x = 2,643,366,796.98/43,311.80
  6. Step 6: Final answer
    x = 61,031.10

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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.