Home / 72,914.64-109,381.08-28,535.66

Finding the Fourth Proportional to 72,914.64, 109,381.08 and 28,535.66

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Solution

The fourth proportional to 72,914.64, 109,381.08 and 28,535.66 is: 42,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,914.64 : 109,381.08 = 28,535.66 : x
  2. Step 2: Convert to fraction form
    72,914.64/109,381.08 = 28,535.66/x
  3. Step 3: Cross multiply
    72,914.64x = 109,381.08 × 28,535.66
  4. Step 4: Simplify right side
    72,914.64x = 3,121,261,309.31
  5. Step 5: Solve for x
    x = 3,121,261,309.31/72,914.64
  6. Step 6: Final answer
    x = 42,807.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.