Home / 85,319.33-117,740.53-47,078.84

Finding the Fourth Proportional to 85,319.33, 117,740.53 and 47,078.84

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Solution

The fourth proportional to 85,319.33, 117,740.53 and 47,078.84 is: 64,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,319.33 : 117,740.53 = 47,078.84 : x
  2. Step 2: Convert to fraction form
    85,319.33/117,740.53 = 47,078.84/x
  3. Step 3: Cross multiply
    85,319.33x = 117,740.53 × 47,078.84
  4. Step 4: Simplify right side
    85,319.33x = 5,543,087,750.04
  5. Step 5: Solve for x
    x = 5,543,087,750.04/85,319.33
  6. Step 6: Final answer
    x = 64,968.72

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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.