Home / 85,127.95-117,420.32-53,241.49

Finding the Fourth Proportional to 85,127.95, 117,420.32 and 53,241.49

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Solution

The fourth proportional to 85,127.95, 117,420.32 and 53,241.49 is: 73,438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,127.95 : 117,420.32 = 53,241.49 : x
  2. Step 2: Convert to fraction form
    85,127.95/117,420.32 = 53,241.49/x
  3. Step 3: Cross multiply
    85,127.95x = 117,420.32 × 53,241.49
  4. Step 4: Simplify right side
    85,127.95x = 6,251,632,205.98
  5. Step 5: Solve for x
    x = 6,251,632,205.98/85,127.95
  6. Step 6: Final answer
    x = 73,438.07

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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.