Home / 85,070.30-117,395.86-47,344.55

Finding the Fourth Proportional to 85,070.30, 117,395.86 and 47,344.55

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Solution

The fourth proportional to 85,070.30, 117,395.86 and 47,344.55 is: 65,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,070.30 : 117,395.86 = 47,344.55 : x
  2. Step 2: Convert to fraction form
    85,070.30/117,395.86 = 47,344.55/x
  3. Step 3: Cross multiply
    85,070.30x = 117,395.86 × 47,344.55
  4. Step 4: Simplify right side
    85,070.30x = 5,558,054,163.56
  5. Step 5: Solve for x
    x = 5,558,054,163.56/85,070.30
  6. Step 6: Final answer
    x = 65,334.84

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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.