Home / 89,031.55-122,866.64-48,745.64

Finding the Fourth Proportional to 89,031.55, 122,866.64 and 48,745.64

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Solution

The fourth proportional to 89,031.55, 122,866.64 and 48,745.64 is: 67,270.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,031.55 : 122,866.64 = 48,745.64 : x
  2. Step 2: Convert to fraction form
    89,031.55/122,866.64 = 48,745.64/x
  3. Step 3: Cross multiply
    89,031.55x = 122,866.64 × 48,745.64
  4. Step 4: Simplify right side
    89,031.55x = 5,989,213,001.45
  5. Step 5: Solve for x
    x = 5,989,213,001.45/89,031.55
  6. Step 6: Final answer
    x = 67,270.68

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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.