Home / 78,554.28-118,028.26-73,830.36

Finding the Fourth Proportional to 78,554.28, 118,028.26 and 73,830.36

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Solution

The fourth proportional to 78,554.28, 118,028.26 and 73,830.36 is: 110,930.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,554.28 : 118,028.26 = 73,830.36 : x
  2. Step 2: Convert to fraction form
    78,554.28/118,028.26 = 73,830.36/x
  3. Step 3: Cross multiply
    78,554.28x = 118,028.26 × 73,830.36
  4. Step 4: Simplify right side
    78,554.28x = 8,714,068,925.97
  5. Step 5: Solve for x
    x = 8,714,068,925.97/78,554.28
  6. Step 6: Final answer
    x = 110,930.54

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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.