Home / 61,190.07-91,636.91-31,125.21

Finding the Fourth Proportional to 61,190.07, 91,636.91 and 31,125.21

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Solution

The fourth proportional to 61,190.07, 91,636.91 and 31,125.21 is: 46,612.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,190.07 : 91,636.91 = 31,125.21 : x
  2. Step 2: Convert to fraction form
    61,190.07/91,636.91 = 31,125.21/x
  3. Step 3: Cross multiply
    61,190.07x = 91,636.91 × 31,125.21
  4. Step 4: Simplify right side
    61,190.07x = 2,852,217,911.88
  5. Step 5: Solve for x
    x = 2,852,217,911.88/61,190.07
  6. Step 6: Final answer
    x = 46,612.43

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1.5x scale

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.