Home / 86,508.12-119,384.64-48,781.56

Finding the Fourth Proportional to 86,508.12, 119,384.64 and 48,781.56

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Solution

The fourth proportional to 86,508.12, 119,384.64 and 48,781.56 is: 67,320.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,508.12 : 119,384.64 = 48,781.56 : x
  2. Step 2: Convert to fraction form
    86,508.12/119,384.64 = 48,781.56/x
  3. Step 3: Cross multiply
    86,508.12x = 119,384.64 × 48,781.56
  4. Step 4: Simplify right side
    86,508.12x = 5,823,768,979.24
  5. Step 5: Solve for x
    x = 5,823,768,979.24/86,508.12
  6. Step 6: Final answer
    x = 67,320.49

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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.