Home / 170,051.20-255,068.70-57,720.40

Finding the Fourth Proportional to 170,051.20, 255,068.70 and 57,720.40

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Solution

The fourth proportional to 170,051.20, 255,068.70 and 57,720.40 is: 86,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,051.20 : 255,068.70 = 57,720.40 : x
  2. Step 2: Convert to fraction form
    170,051.20/255,068.70 = 57,720.40/x
  3. Step 3: Cross multiply
    170,051.20x = 255,068.70 × 57,720.40
  4. Step 4: Simplify right side
    170,051.20x = 14,722,667,391.48
  5. Step 5: Solve for x
    x = 14,722,667,391.48/170,051.20
  6. Step 6: Final answer
    x = 86,577.85

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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.