Home / 86,743.74-130,019.94-56,745.51

Finding the Fourth Proportional to 86,743.74, 130,019.94 and 56,745.51

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Solution

The fourth proportional to 86,743.74, 130,019.94 and 56,745.51 is: 85,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,743.74 : 130,019.94 = 56,745.51 : x
  2. Step 2: Convert to fraction form
    86,743.74/130,019.94 = 56,745.51/x
  3. Step 3: Cross multiply
    86,743.74x = 130,019.94 × 56,745.51
  4. Step 4: Simplify right side
    86,743.74x = 7,378,047,805.47
  5. Step 5: Solve for x
    x = 7,378,047,805.47/86,743.74
  6. Step 6: Final answer
    x = 85,055.68

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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.