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Finding the Fourth Proportional to 53,054.52, 79,581.80 and 13,611.63

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Solution

The fourth proportional to 53,054.52, 79,581.80 and 13,611.63 is: 20,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,054.52 : 79,581.80 = 13,611.63 : x
  2. Step 2: Convert to fraction form
    53,054.52/79,581.80 = 13,611.63/x
  3. Step 3: Cross multiply
    53,054.52x = 79,581.80 × 13,611.63
  4. Step 4: Simplify right side
    53,054.52x = 1,083,237,948.28
  5. Step 5: Solve for x
    x = 1,083,237,948.28/53,054.52
  6. Step 6: Final answer
    x = 20,417.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.