Home / 85,930.80-118,626.84-54,148.56

Finding the Fourth Proportional to 85,930.80, 118,626.84 and 54,148.56

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Solution

The fourth proportional to 85,930.80, 118,626.84 and 54,148.56 is: 74,751.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,930.80 : 118,626.84 = 54,148.56 : x
  2. Step 2: Convert to fraction form
    85,930.80/118,626.84 = 54,148.56/x
  3. Step 3: Cross multiply
    85,930.80x = 118,626.84 × 54,148.56
  4. Step 4: Simplify right side
    85,930.80x = 6,423,472,563.35
  5. Step 5: Solve for x
    x = 6,423,472,563.35/85,930.80
  6. Step 6: Final answer
    x = 74,751.69

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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.