Home / 51,483.56-77,225.40-20,318

Finding the Fourth Proportional to 51,483.56, 77,225.40 and 20,318

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Solution

The fourth proportional to 51,483.56, 77,225.40 and 20,318 is: 30,477.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,483.56 : 77,225.40 = 20,318 : x
  2. Step 2: Convert to fraction form
    51,483.56/77,225.40 = 20,318/x
  3. Step 3: Cross multiply
    51,483.56x = 77,225.40 × 20,318
  4. Step 4: Simplify right side
    51,483.56x = 1,569,065,677.20
  5. Step 5: Solve for x
    x = 1,569,065,677.20/51,483.56
  6. Step 6: Final answer
    x = 30,477.02

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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.