Home / 86,964.58-130,490.64-64,822.42

Finding the Fourth Proportional to 86,964.58, 130,490.64 and 64,822.42

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Solution

The fourth proportional to 86,964.58, 130,490.64 and 64,822.42 is: 97,266.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,964.58 : 130,490.64 = 64,822.42 : x
  2. Step 2: Convert to fraction form
    86,964.58/130,490.64 = 64,822.42/x
  3. Step 3: Cross multiply
    86,964.58x = 130,490.64 × 64,822.42
  4. Step 4: Simplify right side
    86,964.58x = 8,458,719,072.15
  5. Step 5: Solve for x
    x = 8,458,719,072.15/86,964.58
  6. Step 6: Final answer
    x = 97,266.26

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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.