Home / 211,853.93-317,780.77-54,082.32

Finding the Fourth Proportional to 211,853.93, 317,780.77 and 54,082.32

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Solution

The fourth proportional to 211,853.93, 317,780.77 and 54,082.32 is: 81,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,853.93 : 317,780.77 = 54,082.32 : x
  2. Step 2: Convert to fraction form
    211,853.93/317,780.77 = 54,082.32/x
  3. Step 3: Cross multiply
    211,853.93x = 317,780.77 × 54,082.32
  4. Step 4: Simplify right side
    211,853.93x = 17,186,321,292.99
  5. Step 5: Solve for x
    x = 17,186,321,292.99/211,853.93
  6. Step 6: Final answer
    x = 81,123.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.