Home / 69,040.84-103,395.14-39,368.72

Finding the Fourth Proportional to 69,040.84, 103,395.14 and 39,368.72

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Solution

The fourth proportional to 69,040.84, 103,395.14 and 39,368.72 is: 58,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,040.84 : 103,395.14 = 39,368.72 : x
  2. Step 2: Convert to fraction form
    69,040.84/103,395.14 = 39,368.72/x
  3. Step 3: Cross multiply
    69,040.84x = 103,395.14 × 39,368.72
  4. Step 4: Simplify right side
    69,040.84x = 4,070,534,316.02
  5. Step 5: Solve for x
    x = 4,070,534,316.02/69,040.84
  6. Step 6: Final answer
    x = 58,958.35

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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.