Home / 53,422.36-79,785.01-45,439.80

Finding the Fourth Proportional to 53,422.36, 79,785.01 and 45,439.80

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Solution

The fourth proportional to 53,422.36, 79,785.01 and 45,439.80 is: 67,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,422.36 : 79,785.01 = 45,439.80 : x
  2. Step 2: Convert to fraction form
    53,422.36/79,785.01 = 45,439.80/x
  3. Step 3: Cross multiply
    53,422.36x = 79,785.01 × 45,439.80
  4. Step 4: Simplify right side
    53,422.36x = 3,625,414,897.40
  5. Step 5: Solve for x
    x = 3,625,414,897.40/53,422.36
  6. Step 6: Final answer
    x = 67,863.25

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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.