Home / 52,653.54-72,661.70-28,780.20

Finding the Fourth Proportional to 52,653.54, 72,661.70 and 28,780.20

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Solution

The fourth proportional to 52,653.54, 72,661.70 and 28,780.20 is: 39,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,653.54 : 72,661.70 = 28,780.20 : x
  2. Step 2: Convert to fraction form
    52,653.54/72,661.70 = 28,780.20/x
  3. Step 3: Cross multiply
    52,653.54x = 72,661.70 × 28,780.20
  4. Step 4: Simplify right side
    52,653.54x = 2,091,218,258.34
  5. Step 5: Solve for x
    x = 2,091,218,258.34/52,653.54
  6. Step 6: Final answer
    x = 39,716.57

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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.