Home / 105,332.36-145,361.24-57,589.25

Finding the Fourth Proportional to 105,332.36, 145,361.24 and 57,589.25

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Solution

The fourth proportional to 105,332.36, 145,361.24 and 57,589.25 is: 79,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,332.36 : 145,361.24 = 57,589.25 : x
  2. Step 2: Convert to fraction form
    105,332.36/145,361.24 = 57,589.25/x
  3. Step 3: Cross multiply
    105,332.36x = 145,361.24 × 57,589.25
  4. Step 4: Simplify right side
    105,332.36x = 8,371,243,775.92
  5. Step 5: Solve for x
    x = 8,371,243,775.92/105,332.36
  6. Step 6: Final answer
    x = 79,474.57

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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.