Home / 51,177.18-70,622.73-28,515

Finding the Fourth Proportional to 51,177.18, 70,622.73 and 28,515

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Solution

The fourth proportional to 51,177.18, 70,622.73 and 28,515 is: 39,349.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,177.18 : 70,622.73 = 28,515 : x
  2. Step 2: Convert to fraction form
    51,177.18/70,622.73 = 28,515/x
  3. Step 3: Cross multiply
    51,177.18x = 70,622.73 × 28,515
  4. Step 4: Simplify right side
    51,177.18x = 2,013,807,145.95
  5. Step 5: Solve for x
    x = 2,013,807,145.95/51,177.18
  6. Step 6: Final answer
    x = 39,349.71

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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.