Home / 52,185.12-72,015.49-28,311.79

Finding the Fourth Proportional to 52,185.12, 72,015.49 and 28,311.79

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Solution

The fourth proportional to 52,185.12, 72,015.49 and 28,311.79 is: 39,070.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,185.12 : 72,015.49 = 28,311.79 : x
  2. Step 2: Convert to fraction form
    52,185.12/72,015.49 = 28,311.79/x
  3. Step 3: Cross multiply
    52,185.12x = 72,015.49 × 28,311.79
  4. Step 4: Simplify right side
    52,185.12x = 2,038,887,429.63
  5. Step 5: Solve for x
    x = 2,038,887,429.63/52,185.12
  6. Step 6: Final answer
    x = 39,070.28

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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.