Home / 86,946.42-130,331.40-49,428.98

Finding the Fourth Proportional to 86,946.42, 130,331.40 and 49,428.98

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Solution

The fourth proportional to 86,946.42, 130,331.40 and 49,428.98 is: 74,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,946.42 : 130,331.40 = 49,428.98 : x
  2. Step 2: Convert to fraction form
    86,946.42/130,331.40 = 49,428.98/x
  3. Step 3: Cross multiply
    86,946.42x = 130,331.40 × 49,428.98
  4. Step 4: Simplify right side
    86,946.42x = 6,442,148,163.97
  5. Step 5: Solve for x
    x = 6,442,148,163.97/86,946.42
  6. Step 6: Final answer
    x = 74,093.31

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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.