Home / 53,130.15-73,319.82-31,909.77

Finding the Fourth Proportional to 53,130.15, 73,319.82 and 31,909.77

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Solution

The fourth proportional to 53,130.15, 73,319.82 and 31,909.77 is: 44,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,130.15 : 73,319.82 = 31,909.77 : x
  2. Step 2: Convert to fraction form
    53,130.15/73,319.82 = 31,909.77/x
  3. Step 3: Cross multiply
    53,130.15x = 73,319.82 × 31,909.77
  4. Step 4: Simplify right side
    53,130.15x = 2,339,618,592.64
  5. Step 5: Solve for x
    x = 2,339,618,592.64/53,130.15
  6. Step 6: Final answer
    x = 44,035.61

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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.