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Finding the Fourth Proportional to 85,599.91, 118,131.35 and 47,358.79

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Solution

The fourth proportional to 85,599.91, 118,131.35 and 47,358.79 is: 65,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,599.91 : 118,131.35 = 47,358.79 : x
  2. Step 2: Convert to fraction form
    85,599.91/118,131.35 = 47,358.79/x
  3. Step 3: Cross multiply
    85,599.91x = 118,131.35 × 47,358.79
  4. Step 4: Simplify right side
    85,599.91x = 5,594,557,797.07
  5. Step 5: Solve for x
    x = 5,594,557,797.07/85,599.91
  6. Step 6: Final answer
    x = 65,357.05

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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.