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Finding the Fourth Proportional to 66,689.60, 92,065.07 and 51,548.00

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Solution

The fourth proportional to 66,689.60, 92,065.07 and 51,548.00 is: 71,162.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,689.60 : 92,065.07 = 51,548.00 : x
  2. Step 2: Convert to fraction form
    66,689.60/92,065.07 = 51,548.00/x
  3. Step 3: Cross multiply
    66,689.60x = 92,065.07 × 51,548.00
  4. Step 4: Simplify right side
    66,689.60x = 4,745,769,896.90
  5. Step 5: Solve for x
    x = 4,745,769,896.90/66,689.60
  6. Step 6: Final answer
    x = 71,162.07

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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.