Home / 66,510.18-91,784.31-36,296.17

Finding the Fourth Proportional to 66,510.18, 91,784.31 and 36,296.17

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Solution

The fourth proportional to 66,510.18, 91,784.31 and 36,296.17 is: 50,088.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,510.18 : 91,784.31 = 36,296.17 : x
  2. Step 2: Convert to fraction form
    66,510.18/91,784.31 = 36,296.17/x
  3. Step 3: Cross multiply
    66,510.18x = 91,784.31 × 36,296.17
  4. Step 4: Simplify right side
    66,510.18x = 3,331,418,919.09
  5. Step 5: Solve for x
    x = 3,331,418,919.09/66,510.18
  6. Step 6: Final answer
    x = 50,088.86

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1.5x scale

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.