Home / 52,640.16-72,609.44-31,403.04

Finding the Fourth Proportional to 52,640.16, 72,609.44 and 31,403.04

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Solution

The fourth proportional to 52,640.16, 72,609.44 and 31,403.04 is: 43,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,640.16 : 72,609.44 = 31,403.04 : x
  2. Step 2: Convert to fraction form
    52,640.16/72,609.44 = 31,403.04/x
  3. Step 3: Cross multiply
    52,640.16x = 72,609.44 × 31,403.04
  4. Step 4: Simplify right side
    52,640.16x = 2,280,157,148.70
  5. Step 5: Solve for x
    x = 2,280,157,148.70/52,640.16
  6. Step 6: Final answer
    x = 43,315.92

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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.