Home / 61,117.40-91,257.97-54,751.18

Finding the Fourth Proportional to 61,117.40, 91,257.97 and 54,751.18

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Solution

The fourth proportional to 61,117.40, 91,257.97 and 54,751.18 is: 81,752.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,117.40 : 91,257.97 = 54,751.18 : x
  2. Step 2: Convert to fraction form
    61,117.40/91,257.97 = 54,751.18/x
  3. Step 3: Cross multiply
    61,117.40x = 91,257.97 × 54,751.18
  4. Step 4: Simplify right side
    61,117.40x = 4,996,481,541.90
  5. Step 5: Solve for x
    x = 4,996,481,541.90/61,117.40
  6. Step 6: Final answer
    x = 81,752.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.