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Finding the Fourth Proportional to 67,389.03, 92,937.78 and 53,955.38

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Solution

The fourth proportional to 67,389.03, 92,937.78 and 53,955.38 is: 74,411.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,389.03 : 92,937.78 = 53,955.38 : x
  2. Step 2: Convert to fraction form
    67,389.03/92,937.78 = 53,955.38/x
  3. Step 3: Cross multiply
    67,389.03x = 92,937.78 × 53,955.38
  4. Step 4: Simplify right side
    67,389.03x = 5,014,493,468.60
  5. Step 5: Solve for x
    x = 5,014,493,468.60/67,389.03
  6. Step 6: Final answer
    x = 74,411.12

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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.