Home / 77,950.09-107,571.09-42,140.13

Finding the Fourth Proportional to 77,950.09, 107,571.09 and 42,140.13

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Solution

The fourth proportional to 77,950.09, 107,571.09 and 42,140.13 is: 58,153.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,950.09 : 107,571.09 = 42,140.13 : x
  2. Step 2: Convert to fraction form
    77,950.09/107,571.09 = 42,140.13/x
  3. Step 3: Cross multiply
    77,950.09x = 107,571.09 × 42,140.13
  4. Step 4: Simplify right side
    77,950.09x = 4,533,059,716.84
  5. Step 5: Solve for x
    x = 4,533,059,716.84/77,950.09
  6. Step 6: Final answer
    x = 58,153.36

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1.5x scale

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.