Home / 51,315.08-76,860.30-30,492.68

Finding the Fourth Proportional to 51,315.08, 76,860.30 and 30,492.68

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Solution

The fourth proportional to 51,315.08, 76,860.30 and 30,492.68 is: 45,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,315.08 : 76,860.30 = 30,492.68 : x
  2. Step 2: Convert to fraction form
    51,315.08/76,860.30 = 30,492.68/x
  3. Step 3: Cross multiply
    51,315.08x = 76,860.30 × 30,492.68
  4. Step 4: Simplify right side
    51,315.08x = 2,343,676,532.60
  5. Step 5: Solve for x
    x = 2,343,676,532.60/51,315.08
  6. Step 6: Final answer
    x = 45,672.28

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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.