Home / 85,943.66-118,609.40-47,706.80

Finding the Fourth Proportional to 85,943.66, 118,609.40 and 47,706.80

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Solution

The fourth proportional to 85,943.66, 118,609.40 and 47,706.80 is: 65,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,943.66 : 118,609.40 = 47,706.80 : x
  2. Step 2: Convert to fraction form
    85,943.66/118,609.40 = 47,706.80/x
  3. Step 3: Cross multiply
    85,943.66x = 118,609.40 × 47,706.80
  4. Step 4: Simplify right side
    85,943.66x = 5,658,474,923.92
  5. Step 5: Solve for x
    x = 5,658,474,923.92/85,943.66
  6. Step 6: Final answer
    x = 65,839.35

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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.