Home / 77,415.77-106,833.33-42,960.16

Finding the Fourth Proportional to 77,415.77, 106,833.33 and 42,960.16

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Solution

The fourth proportional to 77,415.77, 106,833.33 and 42,960.16 is: 59,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,415.77 : 106,833.33 = 42,960.16 : x
  2. Step 2: Convert to fraction form
    77,415.77/106,833.33 = 42,960.16/x
  3. Step 3: Cross multiply
    77,415.77x = 106,833.33 × 42,960.16
  4. Step 4: Simplify right side
    77,415.77x = 4,589,576,950.13
  5. Step 5: Solve for x
    x = 4,589,576,950.13/77,415.77
  6. Step 6: Final answer
    x = 59,284.78

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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.