Home / 76,156.90-114,110.51-53,930.36

Finding the Fourth Proportional to 76,156.90, 114,110.51 and 53,930.36

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Solution

The fourth proportional to 76,156.90, 114,110.51 and 53,930.36 is: 80,807.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,156.90 : 114,110.51 = 53,930.36 : x
  2. Step 2: Convert to fraction form
    76,156.90/114,110.51 = 53,930.36/x
  3. Step 3: Cross multiply
    76,156.90x = 114,110.51 × 53,930.36
  4. Step 4: Simplify right side
    76,156.90x = 6,154,020,899.71
  5. Step 5: Solve for x
    x = 6,154,020,899.71/76,156.90
  6. Step 6: Final answer
    x = 80,807.14

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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.