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Finding the Fourth Proportional to 67,365.91, 92,964.91 and 38,687.45

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Solution

The fourth proportional to 67,365.91, 92,964.91 and 38,687.45 is: 53,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,365.91 : 92,964.91 = 38,687.45 : x
  2. Step 2: Convert to fraction form
    67,365.91/92,964.91 = 38,687.45/x
  3. Step 3: Cross multiply
    67,365.91x = 92,964.91 × 38,687.45
  4. Step 4: Simplify right side
    67,365.91x = 3,596,575,307.38
  5. Step 5: Solve for x
    x = 3,596,575,307.38/67,365.91
  6. Step 6: Final answer
    x = 53,388.65

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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.