Home / 52,186.78-72,017.11-28,313.28

Finding the Fourth Proportional to 52,186.78, 72,017.11 and 28,313.28

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Solution

The fourth proportional to 52,186.78, 72,017.11 and 28,313.28 is: 39,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,186.78 : 72,017.11 = 28,313.28 : x
  2. Step 2: Convert to fraction form
    52,186.78/72,017.11 = 28,313.28/x
  3. Step 3: Cross multiply
    52,186.78x = 72,017.11 × 28,313.28
  4. Step 4: Simplify right side
    52,186.78x = 2,039,040,823.73
  5. Step 5: Solve for x
    x = 2,039,040,823.73/52,186.78
  6. Step 6: Final answer
    x = 39,071.98

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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.