Home / 66,345.40-91,382.34-51,002.68

Finding the Fourth Proportional to 66,345.40, 91,382.34 and 51,002.68

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Solution

The fourth proportional to 66,345.40, 91,382.34 and 51,002.68 is: 70,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,345.40 : 91,382.34 = 51,002.68 : x
  2. Step 2: Convert to fraction form
    66,345.40/91,382.34 = 51,002.68/x
  3. Step 3: Cross multiply
    66,345.40x = 91,382.34 × 51,002.68
  4. Step 4: Simplify right side
    66,345.40x = 4,660,744,244.67
  5. Step 5: Solve for x
    x = 4,660,744,244.67/66,345.40
  6. Step 6: Final answer
    x = 70,249.70

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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.