Home / 48,138.48-66,451.32-29,282.16

Finding the Fourth Proportional to 48,138.48, 66,451.32 and 29,282.16

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Solution

The fourth proportional to 48,138.48, 66,451.32 and 29,282.16 is: 40,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,138.48 : 66,451.32 = 29,282.16 : x
  2. Step 2: Convert to fraction form
    48,138.48/66,451.32 = 29,282.16/x
  3. Step 3: Cross multiply
    48,138.48x = 66,451.32 × 29,282.16
  4. Step 4: Simplify right side
    48,138.48x = 1,945,838,184.45
  5. Step 5: Solve for x
    x = 1,945,838,184.45/48,138.48
  6. Step 6: Final answer
    x = 40,421.68

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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.