Home / 77,904.68-116,810.20-30,463.28

Finding the Fourth Proportional to 77,904.68, 116,810.20 and 30,463.28

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Solution

The fourth proportional to 77,904.68, 116,810.20 and 30,463.28 is: 45,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,904.68 : 116,810.20 = 30,463.28 : x
  2. Step 2: Convert to fraction form
    77,904.68/116,810.20 = 30,463.28/x
  3. Step 3: Cross multiply
    77,904.68x = 116,810.20 × 30,463.28
  4. Step 4: Simplify right side
    77,904.68x = 3,558,421,829.46
  5. Step 5: Solve for x
    x = 3,558,421,829.46/77,904.68
  6. Step 6: Final answer
    x = 45,676.61

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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.