Home / 86,488.40-129,719.64-33,934.16

Finding the Fourth Proportional to 86,488.40, 129,719.64 and 33,934.16

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Solution

The fourth proportional to 86,488.40, 129,719.64 and 33,934.16 is: 50,896.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,488.40 : 129,719.64 = 33,934.16 : x
  2. Step 2: Convert to fraction form
    86,488.40/129,719.64 = 33,934.16/x
  3. Step 3: Cross multiply
    86,488.40x = 129,719.64 × 33,934.16
  4. Step 4: Simplify right side
    86,488.40x = 4,401,927,018.90
  5. Step 5: Solve for x
    x = 4,401,927,018.90/86,488.40
  6. Step 6: Final answer
    x = 50,896.16

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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.