Home / 75,347.12-103,979.64-41,813.68

Finding the Fourth Proportional to 75,347.12, 103,979.64 and 41,813.68

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Solution

The fourth proportional to 75,347.12, 103,979.64 and 41,813.68 is: 57,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,347.12 : 103,979.64 = 41,813.68 : x
  2. Step 2: Convert to fraction form
    75,347.12/103,979.64 = 41,813.68/x
  3. Step 3: Cross multiply
    75,347.12x = 103,979.64 × 41,813.68
  4. Step 4: Simplify right side
    75,347.12x = 4,347,771,393.48
  5. Step 5: Solve for x
    x = 4,347,771,393.48/75,347.12
  6. Step 6: Final answer
    x = 57,703.22

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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.