Home / 67,420.29-101,175.58-27,977.45

Finding the Fourth Proportional to 67,420.29, 101,175.58 and 27,977.45

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Solution

The fourth proportional to 67,420.29, 101,175.58 and 27,977.45 is: 41,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,420.29 : 101,175.58 = 27,977.45 : x
  2. Step 2: Convert to fraction form
    67,420.29/101,175.58 = 27,977.45/x
  3. Step 3: Cross multiply
    67,420.29x = 101,175.58 × 27,977.45
  4. Step 4: Simplify right side
    67,420.29x = 2,830,634,259.76
  5. Step 5: Solve for x
    x = 2,830,634,259.76/67,420.29
  6. Step 6: Final answer
    x = 41,984.90

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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.