Home / 75,485.18-113,184-31,061.72

Finding the Fourth Proportional to 75,485.18, 113,184 and 31,061.72

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Solution

The fourth proportional to 75,485.18, 113,184 and 31,061.72 is: 46,574.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,485.18 : 113,184 = 31,061.72 : x
  2. Step 2: Convert to fraction form
    75,485.18/113,184 = 31,061.72/x
  3. Step 3: Cross multiply
    75,485.18x = 113,184 × 31,061.72
  4. Step 4: Simplify right side
    75,485.18x = 3,515,689,716.48
  5. Step 5: Solve for x
    x = 3,515,689,716.48/75,485.18
  6. Step 6: Final answer
    x = 46,574.57

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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.