Home / 85,867.59-118,498.50-51,871.36

Finding the Fourth Proportional to 85,867.59, 118,498.50 and 51,871.36

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Solution

The fourth proportional to 85,867.59, 118,498.50 and 51,871.36 is: 71,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,867.59 : 118,498.50 = 51,871.36 : x
  2. Step 2: Convert to fraction form
    85,867.59/118,498.50 = 51,871.36/x
  3. Step 3: Cross multiply
    85,867.59x = 118,498.50 × 51,871.36
  4. Step 4: Simplify right side
    85,867.59x = 6,146,677,760.47
  5. Step 5: Solve for x
    x = 6,146,677,760.47/85,867.59
  6. Step 6: Final answer
    x = 71,583.21

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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.