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Finding the Fourth Proportional to 79,381.88, 109,552.48 and 52,477.74

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Solution

The fourth proportional to 79,381.88, 109,552.48 and 52,477.74 is: 72,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,381.88 : 109,552.48 = 52,477.74 : x
  2. Step 2: Convert to fraction form
    79,381.88/109,552.48 = 52,477.74/x
  3. Step 3: Cross multiply
    79,381.88x = 109,552.48 × 52,477.74
  4. Step 4: Simplify right side
    79,381.88x = 5,749,066,561.80
  5. Step 5: Solve for x
    x = 5,749,066,561.80/79,381.88
  6. Step 6: Final answer
    x = 72,422.91

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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.