Home / 67,386.69-92,986.20-39,086.91

Finding the Fourth Proportional to 67,386.69, 92,986.20 and 39,086.91

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Solution

The fourth proportional to 67,386.69, 92,986.20 and 39,086.91 is: 53,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,386.69 : 92,986.20 = 39,086.91 : x
  2. Step 2: Convert to fraction form
    67,386.69/92,986.20 = 39,086.91/x
  3. Step 3: Cross multiply
    67,386.69x = 92,986.20 × 39,086.91
  4. Step 4: Simplify right side
    67,386.69x = 3,634,543,230.64
  5. Step 5: Solve for x
    x = 3,634,543,230.64/67,386.69
  6. Step 6: Final answer
    x = 53,935.62

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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.