Home / 51,492.24-76,823.64-45,878.40

Finding the Fourth Proportional to 51,492.24, 76,823.64 and 45,878.40

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Solution

The fourth proportional to 51,492.24, 76,823.64 and 45,878.40 is: 68,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,492.24 : 76,823.64 = 45,878.40 : x
  2. Step 2: Convert to fraction form
    51,492.24/76,823.64 = 45,878.40/x
  3. Step 3: Cross multiply
    51,492.24x = 76,823.64 × 45,878.40
  4. Step 4: Simplify right side
    51,492.24x = 3,524,545,685.38
  5. Step 5: Solve for x
    x = 3,524,545,685.38/51,492.24
  6. Step 6: Final answer
    x = 68,448.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.