Home / 61,455.08-92,109.72-54,369.20

Finding the Fourth Proportional to 61,455.08, 92,109.72 and 54,369.20

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Solution

The fourth proportional to 61,455.08, 92,109.72 and 54,369.20 is: 81,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,455.08 : 92,109.72 = 54,369.20 : x
  2. Step 2: Convert to fraction form
    61,455.08/92,109.72 = 54,369.20/x
  3. Step 3: Cross multiply
    61,455.08x = 92,109.72 × 54,369.20
  4. Step 4: Simplify right side
    61,455.08x = 5,007,931,788.62
  5. Step 5: Solve for x
    x = 5,007,931,788.62/61,455.08
  6. Step 6: Final answer
    x = 81,489.31

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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.