Home / 87,185.72-130,810.37-53,867.58

Finding the Fourth Proportional to 87,185.72, 130,810.37 and 53,867.58

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Solution

The fourth proportional to 87,185.72, 130,810.37 and 53,867.58 is: 80,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,185.72 : 130,810.37 = 53,867.58 : x
  2. Step 2: Convert to fraction form
    87,185.72/130,810.37 = 53,867.58/x
  3. Step 3: Cross multiply
    87,185.72x = 130,810.37 × 53,867.58
  4. Step 4: Simplify right side
    87,185.72x = 7,046,437,801.47
  5. Step 5: Solve for x
    x = 7,046,437,801.47/87,185.72
  6. Step 6: Final answer
    x = 80,821.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.