Home / 66,456.56-91,717.36-40,957.76

Finding the Fourth Proportional to 66,456.56, 91,717.36 and 40,957.76

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Solution

The fourth proportional to 66,456.56, 91,717.36 and 40,957.76 is: 56,526.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,456.56 : 91,717.36 = 40,957.76 : x
  2. Step 2: Convert to fraction form
    66,456.56/91,717.36 = 40,957.76/x
  3. Step 3: Cross multiply
    66,456.56x = 91,717.36 × 40,957.76
  4. Step 4: Simplify right side
    66,456.56x = 3,756,537,618.71
  5. Step 5: Solve for x
    x = 3,756,537,618.71/66,456.56
  6. Step 6: Final answer
    x = 56,526.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.