Home / 67,135.52-92,646.08-38,840.64

Finding the Fourth Proportional to 67,135.52, 92,646.08 and 38,840.64

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Solution

The fourth proportional to 67,135.52, 92,646.08 and 38,840.64 is: 53,599.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,135.52 : 92,646.08 = 38,840.64 : x
  2. Step 2: Convert to fraction form
    67,135.52/92,646.08 = 38,840.64/x
  3. Step 3: Cross multiply
    67,135.52x = 92,646.08 × 38,840.64
  4. Step 4: Simplify right side
    67,135.52x = 3,598,433,040.69
  5. Step 5: Solve for x
    x = 3,598,433,040.69/67,135.52
  6. Step 6: Final answer
    x = 53,599.54

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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.