Home / 85,721.65-118,297.79-48,927.13

Finding the Fourth Proportional to 85,721.65, 118,297.79 and 48,927.13

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Solution

The fourth proportional to 85,721.65, 118,297.79 and 48,927.13 is: 67,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,721.65 : 118,297.79 = 48,927.13 : x
  2. Step 2: Convert to fraction form
    85,721.65/118,297.79 = 48,927.13/x
  3. Step 3: Cross multiply
    85,721.65x = 118,297.79 × 48,927.13
  4. Step 4: Simplify right side
    85,721.65x = 5,787,971,620.23
  5. Step 5: Solve for x
    x = 5,787,971,620.23/85,721.65
  6. Step 6: Final answer
    x = 67,520.54

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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.