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Finding the Fourth Proportional to 53,354.88, 79,955.55 and 39,203.76

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Solution

The fourth proportional to 53,354.88, 79,955.55 and 39,203.76 is: 58,749.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,354.88 : 79,955.55 = 39,203.76 : x
  2. Step 2: Convert to fraction form
    53,354.88/79,955.55 = 39,203.76/x
  3. Step 3: Cross multiply
    53,354.88x = 79,955.55 × 39,203.76
  4. Step 4: Simplify right side
    53,354.88x = 3,134,558,192.87
  5. Step 5: Solve for x
    x = 3,134,558,192.87/53,354.88
  6. Step 6: Final answer
    x = 58,749.23

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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.