Home / 56,633.70-78,152.84-31,140.04

Finding the Fourth Proportional to 56,633.70, 78,152.84 and 31,140.04

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Solution

The fourth proportional to 56,633.70, 78,152.84 and 31,140.04 is: 42,972.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,633.70 : 78,152.84 = 31,140.04 : x
  2. Step 2: Convert to fraction form
    56,633.70/78,152.84 = 31,140.04/x
  3. Step 3: Cross multiply
    56,633.70x = 78,152.84 × 31,140.04
  4. Step 4: Simplify right side
    56,633.70x = 2,433,682,446.18
  5. Step 5: Solve for x
    x = 2,433,682,446.18/56,633.70
  6. Step 6: Final answer
    x = 42,972.34

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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.