Home / 86,388.40-129,600.22-48,965.19

Finding the Fourth Proportional to 86,388.40, 129,600.22 and 48,965.19

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Solution

The fourth proportional to 86,388.40, 129,600.22 and 48,965.19 is: 73,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,388.40 : 129,600.22 = 48,965.19 : x
  2. Step 2: Convert to fraction form
    86,388.40/129,600.22 = 48,965.19/x
  3. Step 3: Cross multiply
    86,388.40x = 129,600.22 × 48,965.19
  4. Step 4: Simplify right side
    86,388.40x = 6,345,899,396.34
  5. Step 5: Solve for x
    x = 6,345,899,396.34/86,388.40
  6. Step 6: Final answer
    x = 73,457.77

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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.