Home / 85,140.93-117,489.91-47,412.75

Finding the Fourth Proportional to 85,140.93, 117,489.91 and 47,412.75

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Solution

The fourth proportional to 85,140.93, 117,489.91 and 47,412.75 is: 65,427.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,140.93 : 117,489.91 = 47,412.75 : x
  2. Step 2: Convert to fraction form
    85,140.93/117,489.91 = 47,412.75/x
  3. Step 3: Cross multiply
    85,140.93x = 117,489.91 × 47,412.75
  4. Step 4: Simplify right side
    85,140.93x = 5,570,519,730.35
  5. Step 5: Solve for x
    x = 5,570,519,730.35/85,140.93
  6. Step 6: Final answer
    x = 65,427.05

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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.