Home / 53,189.20-73,400.71-29,315.90

Finding the Fourth Proportional to 53,189.20, 73,400.71 and 29,315.90

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Solution

The fourth proportional to 53,189.20, 73,400.71 and 29,315.90 is: 40,455.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,189.20 : 73,400.71 = 29,315.90 : x
  2. Step 2: Convert to fraction form
    53,189.20/73,400.71 = 29,315.90/x
  3. Step 3: Cross multiply
    53,189.20x = 73,400.71 × 29,315.90
  4. Step 4: Simplify right side
    53,189.20x = 2,151,807,360.71
  5. Step 5: Solve for x
    x = 2,151,807,360.71/53,189.20
  6. Step 6: Final answer
    x = 40,455.72

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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.