Home / 72,911.16-109,372.14-25,521.03

Finding the Fourth Proportional to 72,911.16, 109,372.14 and 25,521.03

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Solution

The fourth proportional to 72,911.16, 109,372.14 and 25,521.03 is: 38,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,911.16 : 109,372.14 = 25,521.03 : x
  2. Step 2: Convert to fraction form
    72,911.16/109,372.14 = 25,521.03/x
  3. Step 3: Cross multiply
    72,911.16x = 109,372.14 × 25,521.03
  4. Step 4: Simplify right side
    72,911.16x = 2,791,289,666.10
  5. Step 5: Solve for x
    x = 2,791,289,666.10/72,911.16
  6. Step 6: Final answer
    x = 38,283.44

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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.