Home / 87,816.40-121,173.64-51,504.10

Finding the Fourth Proportional to 87,816.40, 121,173.64 and 51,504.10

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Solution

The fourth proportional to 87,816.40, 121,173.64 and 51,504.10 is: 71,068.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,816.40 : 121,173.64 = 51,504.10 : x
  2. Step 2: Convert to fraction form
    87,816.40/121,173.64 = 51,504.10/x
  3. Step 3: Cross multiply
    87,816.40x = 121,173.64 × 51,504.10
  4. Step 4: Simplify right side
    87,816.40x = 6,240,938,840.23
  5. Step 5: Solve for x
    x = 6,240,938,840.23/87,816.40
  6. Step 6: Final answer
    x = 71,068.04

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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.