Home / 78,318.23-117,360.70-44,988.35

Finding the Fourth Proportional to 78,318.23, 117,360.70 and 44,988.35

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Solution

The fourth proportional to 78,318.23, 117,360.70 and 44,988.35 is: 67,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,318.23 : 117,360.70 = 44,988.35 : x
  2. Step 2: Convert to fraction form
    78,318.23/117,360.70 = 44,988.35/x
  3. Step 3: Cross multiply
    78,318.23x = 117,360.70 × 44,988.35
  4. Step 4: Simplify right side
    78,318.23x = 5,279,863,548.57
  5. Step 5: Solve for x
    x = 5,279,863,548.57/78,318.23
  6. Step 6: Final answer
    x = 67,415.52

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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.