Home / 72,927.52-109,381.32-28,585.26

Finding the Fourth Proportional to 72,927.52, 109,381.32 and 28,585.26

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Solution

The fourth proportional to 72,927.52, 109,381.32 and 28,585.26 is: 42,873.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,927.52 : 109,381.32 = 28,585.26 : x
  2. Step 2: Convert to fraction form
    72,927.52/109,381.32 = 28,585.26/x
  3. Step 3: Cross multiply
    72,927.52x = 109,381.32 × 28,585.26
  4. Step 4: Simplify right side
    72,927.52x = 3,126,693,471.34
  5. Step 5: Solve for x
    x = 3,126,693,471.34/72,927.52
  6. Step 6: Final answer
    x = 42,873.99

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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.