Home / 78,965.14-118,466.28-25,656.94

Finding the Fourth Proportional to 78,965.14, 118,466.28 and 25,656.94

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Solution

The fourth proportional to 78,965.14, 118,466.28 and 25,656.94 is: 38,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,965.14 : 118,466.28 = 25,656.94 : x
  2. Step 2: Convert to fraction form
    78,965.14/118,466.28 = 25,656.94/x
  3. Step 3: Cross multiply
    78,965.14x = 118,466.28 × 25,656.94
  4. Step 4: Simplify right side
    78,965.14x = 3,039,482,237.98
  5. Step 5: Solve for x
    x = 3,039,482,237.98/78,965.14
  6. Step 6: Final answer
    x = 38,491.44

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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.