Home / 85,679.04-118,111.36-60,107.88

Finding the Fourth Proportional to 85,679.04, 118,111.36 and 60,107.88

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Solution

The fourth proportional to 85,679.04, 118,111.36 and 60,107.88 is: 82,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,679.04 : 118,111.36 = 60,107.88 : x
  2. Step 2: Convert to fraction form
    85,679.04/118,111.36 = 60,107.88/x
  3. Step 3: Cross multiply
    85,679.04x = 118,111.36 × 60,107.88
  4. Step 4: Simplify right side
    85,679.04x = 7,099,423,453.52
  5. Step 5: Solve for x
    x = 7,099,423,453.52/85,679.04
  6. Step 6: Final answer
    x = 82,860.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.