Home / 45,878.06-68,835.47-20,929.86

Finding the Fourth Proportional to 45,878.06, 68,835.47 and 20,929.86

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Solution

The fourth proportional to 45,878.06, 68,835.47 and 20,929.86 is: 31,403.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,878.06 : 68,835.47 = 20,929.86 : x
  2. Step 2: Convert to fraction form
    45,878.06/68,835.47 = 20,929.86/x
  3. Step 3: Cross multiply
    45,878.06x = 68,835.47 × 20,929.86
  4. Step 4: Simplify right side
    45,878.06x = 1,440,716,645.48
  5. Step 5: Solve for x
    x = 1,440,716,645.48/45,878.06
  6. Step 6: Final answer
    x = 31,403.17

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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.