Home / 90,682.88-136,047.36-53,274.58

Finding the Fourth Proportional to 90,682.88, 136,047.36 and 53,274.58

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Solution

The fourth proportional to 90,682.88, 136,047.36 and 53,274.58 is: 79,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,682.88 : 136,047.36 = 53,274.58 : x
  2. Step 2: Convert to fraction form
    90,682.88/136,047.36 = 53,274.58/x
  3. Step 3: Cross multiply
    90,682.88x = 136,047.36 × 53,274.58
  4. Step 4: Simplify right side
    90,682.88x = 7,247,865,964.11
  5. Step 5: Solve for x
    x = 7,247,865,964.11/90,682.88
  6. Step 6: Final answer
    x = 79,925.41

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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.