Home / 72,261.47-108,381.27-19,675.10

Finding the Fourth Proportional to 72,261.47, 108,381.27 and 19,675.10

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Solution

The fourth proportional to 72,261.47, 108,381.27 and 19,675.10 is: 29,509.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,261.47 : 108,381.27 = 19,675.10 : x
  2. Step 2: Convert to fraction form
    72,261.47/108,381.27 = 19,675.10/x
  3. Step 3: Cross multiply
    72,261.47x = 108,381.27 × 19,675.10
  4. Step 4: Simplify right side
    72,261.47x = 2,132,412,325.38
  5. Step 5: Solve for x
    x = 2,132,412,325.38/72,261.47
  6. Step 6: Final answer
    x = 29,509.67

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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.