Home / 78,733.02-118,076.85-26,128.38

Finding the Fourth Proportional to 78,733.02, 118,076.85 and 26,128.38

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Solution

The fourth proportional to 78,733.02, 118,076.85 and 26,128.38 is: 39,185.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,733.02 : 118,076.85 = 26,128.38 : x
  2. Step 2: Convert to fraction form
    78,733.02/118,076.85 = 26,128.38/x
  3. Step 3: Cross multiply
    78,733.02x = 118,076.85 × 26,128.38
  4. Step 4: Simplify right side
    78,733.02x = 3,085,156,806.00
  5. Step 5: Solve for x
    x = 3,085,156,806.00/78,733.02
  6. Step 6: Final answer
    x = 39,185.04

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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.