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Finding the Fourth Proportional to 67,242.80, 92,807.16 and 38,964.08

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Solution

The fourth proportional to 67,242.80, 92,807.16 and 38,964.08 is: 53,777.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,242.80 : 92,807.16 = 38,964.08 : x
  2. Step 2: Convert to fraction form
    67,242.80/92,807.16 = 38,964.08/x
  3. Step 3: Cross multiply
    67,242.80x = 92,807.16 × 38,964.08
  4. Step 4: Simplify right side
    67,242.80x = 3,616,145,606.81
  5. Step 5: Solve for x
    x = 3,616,145,606.81/67,242.80
  6. Step 6: Final answer
    x = 53,777.44

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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.