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Finding the Fourth Proportional to 53,693.52, 74,056 and 36,479.20

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Solution

The fourth proportional to 53,693.52, 74,056 and 36,479.20 is: 50,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,693.52 : 74,056 = 36,479.20 : x
  2. Step 2: Convert to fraction form
    53,693.52/74,056 = 36,479.20/x
  3. Step 3: Cross multiply
    53,693.52x = 74,056 × 36,479.20
  4. Step 4: Simplify right side
    53,693.52x = 2,701,503,635.20
  5. Step 5: Solve for x
    x = 2,701,503,635.20/53,693.52
  6. Step 6: Final answer
    x = 50,313.40

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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.