Home / 78,880.32-118,334.88-26,284.80

Finding the Fourth Proportional to 78,880.32, 118,334.88 and 26,284.80

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Solution

The fourth proportional to 78,880.32, 118,334.88 and 26,284.80 is: 39,432.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880.32 : 118,334.88 = 26,284.80 : x
  2. Step 2: Convert to fraction form
    78,880.32/118,334.88 = 26,284.80/x
  3. Step 3: Cross multiply
    78,880.32x = 118,334.88 × 26,284.80
  4. Step 4: Simplify right side
    78,880.32x = 3,110,408,653.82
  5. Step 5: Solve for x
    x = 3,110,408,653.82/78,880.32
  6. Step 6: Final answer
    x = 39,432.00

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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.