Home / 55,775.20-76,966.32-51,316.96

Finding the Fourth Proportional to 55,775.20, 76,966.32 and 51,316.96

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Solution

The fourth proportional to 55,775.20, 76,966.32 and 51,316.96 is: 70,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,775.20 : 76,966.32 = 51,316.96 : x
  2. Step 2: Convert to fraction form
    55,775.20/76,966.32 = 51,316.96/x
  3. Step 3: Cross multiply
    55,775.20x = 76,966.32 × 51,316.96
  4. Step 4: Simplify right side
    55,775.20x = 3,949,677,564.79
  5. Step 5: Solve for x
    x = 3,949,677,564.79/55,775.20
  6. Step 6: Final answer
    x = 70,814.23

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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.