Home / 52,839.24-72,918.74-28,965.40

Finding the Fourth Proportional to 52,839.24, 72,918.74 and 28,965.40

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Solution

The fourth proportional to 52,839.24, 72,918.74 and 28,965.40 is: 39,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,839.24 : 72,918.74 = 28,965.40 : x
  2. Step 2: Convert to fraction form
    52,839.24/72,918.74 = 28,965.40/x
  3. Step 3: Cross multiply
    52,839.24x = 72,918.74 × 28,965.40
  4. Step 4: Simplify right side
    52,839.24x = 2,112,120,471.60
  5. Step 5: Solve for x
    x = 2,112,120,471.60/52,839.24
  6. Step 6: Final answer
    x = 39,972.57

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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.