Home / 51,622.40-77,318.40-39,897.60

Finding the Fourth Proportional to 51,622.40, 77,318.40 and 39,897.60

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Solution

The fourth proportional to 51,622.40, 77,318.40 and 39,897.60 is: 59,757.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,622.40 : 77,318.40 = 39,897.60 : x
  2. Step 2: Convert to fraction form
    51,622.40/77,318.40 = 39,897.60/x
  3. Step 3: Cross multiply
    51,622.40x = 77,318.40 × 39,897.60
  4. Step 4: Simplify right side
    51,622.40x = 3,084,818,595.84
  5. Step 5: Solve for x
    x = 3,084,818,595.84/51,622.40
  6. Step 6: Final answer
    x = 59,757.36

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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.