Home / 55,720.44-76,880.88-31,521.87

Finding the Fourth Proportional to 55,720.44, 76,880.88 and 31,521.87

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Solution

The fourth proportional to 55,720.44, 76,880.88 and 31,521.87 is: 43,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,720.44 : 76,880.88 = 31,521.87 : x
  2. Step 2: Convert to fraction form
    55,720.44/76,880.88 = 31,521.87/x
  3. Step 3: Cross multiply
    55,720.44x = 76,880.88 × 31,521.87
  4. Step 4: Simplify right side
    55,720.44x = 2,423,429,104.85
  5. Step 5: Solve for x
    x = 2,423,429,104.85/55,720.44
  6. Step 6: Final answer
    x = 43,492.64

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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.