Home / 351,810.75-527,716.14-85,571.45

Finding the Fourth Proportional to 351,810.75, 527,716.14 and 85,571.45

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Solution

The fourth proportional to 351,810.75, 527,716.14 and 85,571.45 is: 128,357.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,810.75 : 527,716.14 = 85,571.45 : x
  2. Step 2: Convert to fraction form
    351,810.75/527,716.14 = 85,571.45/x
  3. Step 3: Cross multiply
    351,810.75x = 527,716.14 × 85,571.45
  4. Step 4: Simplify right side
    351,810.75x = 45,157,434,307.66
  5. Step 5: Solve for x
    x = 45,157,434,307.66/351,810.75
  6. Step 6: Final answer
    x = 128,357.17

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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.