Home / 86,585.04-129,891.84-30,410.52

Finding the Fourth Proportional to 86,585.04, 129,891.84 and 30,410.52

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Solution

The fourth proportional to 86,585.04, 129,891.84 and 30,410.52 is: 45,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,585.04 : 129,891.84 = 30,410.52 : x
  2. Step 2: Convert to fraction form
    86,585.04/129,891.84 = 30,410.52/x
  3. Step 3: Cross multiply
    86,585.04x = 129,891.84 × 30,410.52
  4. Step 4: Simplify right side
    86,585.04x = 3,950,078,398.16
  5. Step 5: Solve for x
    x = 3,950,078,398.16/86,585.04
  6. Step 6: Final answer
    x = 45,620.80

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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.