Home / 85,685.42-118,245.84-47,959.67

Finding the Fourth Proportional to 85,685.42, 118,245.84 and 47,959.67

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Solution

The fourth proportional to 85,685.42, 118,245.84 and 47,959.67 is: 66,184.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,685.42 : 118,245.84 = 47,959.67 : x
  2. Step 2: Convert to fraction form
    85,685.42/118,245.84 = 47,959.67/x
  3. Step 3: Cross multiply
    85,685.42x = 118,245.84 × 47,959.67
  4. Step 4: Simplify right side
    85,685.42x = 5,671,030,874.04
  5. Step 5: Solve for x
    x = 5,671,030,874.04/85,685.42
  6. Step 6: Final answer
    x = 66,184.32

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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.