Home / 86,330.10-119,126.79-63,681.42

Finding the Fourth Proportional to 86,330.10, 119,126.79 and 63,681.42

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Solution

The fourth proportional to 86,330.10, 119,126.79 and 63,681.42 is: 87,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,330.10 : 119,126.79 = 63,681.42 : x
  2. Step 2: Convert to fraction form
    86,330.10/119,126.79 = 63,681.42/x
  3. Step 3: Cross multiply
    86,330.10x = 119,126.79 × 63,681.42
  4. Step 4: Simplify right side
    86,330.10x = 7,586,163,147.24
  5. Step 5: Solve for x
    x = 7,586,163,147.24/86,330.10
  6. Step 6: Final answer
    x = 87,873.91

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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.