Home / 75,421.40-113,132.10-31,033.40

Finding the Fourth Proportional to 75,421.40, 113,132.10 and 31,033.40

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Solution

The fourth proportional to 75,421.40, 113,132.10 and 31,033.40 is: 46,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,421.40 : 113,132.10 = 31,033.40 : x
  2. Step 2: Convert to fraction form
    75,421.40/113,132.10 = 31,033.40/x
  3. Step 3: Cross multiply
    75,421.40x = 113,132.10 × 31,033.40
  4. Step 4: Simplify right side
    75,421.40x = 3,510,873,712.14
  5. Step 5: Solve for x
    x = 3,510,873,712.14/75,421.40
  6. Step 6: Final answer
    x = 46,550.10

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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.