Home / 76,874.07-106,088.36-45,044.31

Finding the Fourth Proportional to 76,874.07, 106,088.36 and 45,044.31

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Solution

The fourth proportional to 76,874.07, 106,088.36 and 45,044.31 is: 62,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,874.07 : 106,088.36 = 45,044.31 : x
  2. Step 2: Convert to fraction form
    76,874.07/106,088.36 = 45,044.31/x
  3. Step 3: Cross multiply
    76,874.07x = 106,088.36 × 45,044.31
  4. Step 4: Simplify right side
    76,874.07x = 4,778,676,750.01
  5. Step 5: Solve for x
    x = 4,778,676,750.01/76,874.07
  6. Step 6: Final answer
    x = 62,162.40

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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.