Home / 86,788.63-130,069.18-49,365.91

Finding the Fourth Proportional to 86,788.63, 130,069.18 and 49,365.91

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Solution

The fourth proportional to 86,788.63, 130,069.18 and 49,365.91 is: 73,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,788.63 : 130,069.18 = 49,365.91 : x
  2. Step 2: Convert to fraction form
    86,788.63/130,069.18 = 49,365.91/x
  3. Step 3: Cross multiply
    86,788.63x = 130,069.18 × 49,365.91
  4. Step 4: Simplify right side
    86,788.63x = 6,420,983,433.65
  5. Step 5: Solve for x
    x = 6,420,983,433.65/86,788.63
  6. Step 6: Final answer
    x = 73,984.15

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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.