Home / 52,783.22-72,840.66-28,909.82

Finding the Fourth Proportional to 52,783.22, 72,840.66 and 28,909.82

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Solution

The fourth proportional to 52,783.22, 72,840.66 and 28,909.82 is: 39,895.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,783.22 : 72,840.66 = 28,909.82 : x
  2. Step 2: Convert to fraction form
    52,783.22/72,840.66 = 28,909.82/x
  3. Step 3: Cross multiply
    52,783.22x = 72,840.66 × 28,909.82
  4. Step 4: Simplify right side
    52,783.22x = 2,105,810,369.28
  5. Step 5: Solve for x
    x = 2,105,810,369.28/52,783.22
  6. Step 6: Final answer
    x = 39,895.45

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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.