Home / 72,898.30-109,177.32-56,125.18

Finding the Fourth Proportional to 72,898.30, 109,177.32 and 56,125.18

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Solution

The fourth proportional to 72,898.30, 109,177.32 and 56,125.18 is: 84,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,898.30 : 109,177.32 = 56,125.18 : x
  2. Step 2: Convert to fraction form
    72,898.30/109,177.32 = 56,125.18/x
  3. Step 3: Cross multiply
    72,898.30x = 109,177.32 × 56,125.18
  4. Step 4: Simplify right side
    72,898.30x = 6,127,596,736.92
  5. Step 5: Solve for x
    x = 6,127,596,736.92/72,898.30
  6. Step 6: Final answer
    x = 84,056.79

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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.