Home / 61,421.74-91,961.52-31,370.90

Finding the Fourth Proportional to 61,421.74, 91,961.52 and 31,370.90

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Solution

The fourth proportional to 61,421.74, 91,961.52 and 31,370.90 is: 46,968.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,421.74 : 91,961.52 = 31,370.90 : x
  2. Step 2: Convert to fraction form
    61,421.74/91,961.52 = 31,370.90/x
  3. Step 3: Cross multiply
    61,421.74x = 91,961.52 × 31,370.90
  4. Step 4: Simplify right side
    61,421.74x = 2,884,915,647.77
  5. Step 5: Solve for x
    x = 2,884,915,647.77/61,421.74
  6. Step 6: Final answer
    x = 46,968.97

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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.