Home / 85,281.74-117,689.08-47,558.42

Finding the Fourth Proportional to 85,281.74, 117,689.08 and 47,558.42

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Solution

The fourth proportional to 85,281.74, 117,689.08 and 47,558.42 is: 65,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,281.74 : 117,689.08 = 47,558.42 : x
  2. Step 2: Convert to fraction form
    85,281.74/117,689.08 = 47,558.42/x
  3. Step 3: Cross multiply
    85,281.74x = 117,689.08 × 47,558.42
  4. Step 4: Simplify right side
    85,281.74x = 5,597,106,696.05
  5. Step 5: Solve for x
    x = 5,597,106,696.05/85,281.74
  6. Step 6: Final answer
    x = 65,630.78

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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.