Home / 85,800.08-118,333.91-60,390.55

Finding the Fourth Proportional to 85,800.08, 118,333.91 and 60,390.55

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Solution

The fourth proportional to 85,800.08, 118,333.91 and 60,390.55 is: 83,289.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,800.08 : 118,333.91 = 60,390.55 : x
  2. Step 2: Convert to fraction form
    85,800.08/118,333.91 = 60,390.55/x
  3. Step 3: Cross multiply
    85,800.08x = 118,333.91 × 60,390.55
  4. Step 4: Simplify right side
    85,800.08x = 7,146,250,540.26
  5. Step 5: Solve for x
    x = 7,146,250,540.26/85,800.08
  6. Step 6: Final answer
    x = 83,289.56

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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.