Home / 85,618.54-118,147.17-47,885.50

Finding the Fourth Proportional to 85,618.54, 118,147.17 and 47,885.50

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Solution

The fourth proportional to 85,618.54, 118,147.17 and 47,885.50 is: 66,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,618.54 : 118,147.17 = 47,885.50 : x
  2. Step 2: Convert to fraction form
    85,618.54/118,147.17 = 47,885.50/x
  3. Step 3: Cross multiply
    85,618.54x = 118,147.17 × 47,885.50
  4. Step 4: Simplify right side
    85,618.54x = 5,657,536,309.04
  5. Step 5: Solve for x
    x = 5,657,536,309.04/85,618.54
  6. Step 6: Final answer
    x = 66,078.40

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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.