Home / 78,845.64-118,287.28-26,255.58

Finding the Fourth Proportional to 78,845.64, 118,287.28 and 26,255.58

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Solution

The fourth proportional to 78,845.64, 118,287.28 and 26,255.58 is: 39,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,845.64 : 118,287.28 = 26,255.58 : x
  2. Step 2: Convert to fraction form
    78,845.64/118,287.28 = 26,255.58/x
  3. Step 3: Cross multiply
    78,845.64x = 118,287.28 × 26,255.58
  4. Step 4: Simplify right side
    78,845.64x = 3,105,701,143.02
  5. Step 5: Solve for x
    x = 3,105,701,143.02/78,845.64
  6. Step 6: Final answer
    x = 39,389.64

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1.5x scale

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.