Home / 86,360.42-129,540.64-49,398.50

Finding the Fourth Proportional to 86,360.42, 129,540.64 and 49,398.50

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Solution

The fourth proportional to 86,360.42, 129,540.64 and 49,398.50 is: 74,097.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,360.42 : 129,540.64 = 49,398.50 : x
  2. Step 2: Convert to fraction form
    86,360.42/129,540.64 = 49,398.50/x
  3. Step 3: Cross multiply
    86,360.42x = 129,540.64 × 49,398.50
  4. Step 4: Simplify right side
    86,360.42x = 6,399,113,305.04
  5. Step 5: Solve for x
    x = 6,399,113,305.04/86,360.42
  6. Step 6: Final answer
    x = 74,097.76

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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.