Home / 67,189.48-92,711.70-40,326.28

Finding the Fourth Proportional to 67,189.48, 92,711.70 and 40,326.28

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Solution

The fourth proportional to 67,189.48, 92,711.70 and 40,326.28 is: 55,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,189.48 : 92,711.70 = 40,326.28 : x
  2. Step 2: Convert to fraction form
    67,189.48/92,711.70 = 40,326.28/x
  3. Step 3: Cross multiply
    67,189.48x = 92,711.70 × 40,326.28
  4. Step 4: Simplify right side
    67,189.48x = 3,738,717,973.48
  5. Step 5: Solve for x
    x = 3,738,717,973.48/67,189.48
  6. Step 6: Final answer
    x = 55,644.40

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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.