Home / 75,411.60-113,117.29-19,251.71

Finding the Fourth Proportional to 75,411.60, 113,117.29 and 19,251.71

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Solution

The fourth proportional to 75,411.60, 113,117.29 and 19,251.71 is: 28,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,411.60 : 113,117.29 = 19,251.71 : x
  2. Step 2: Convert to fraction form
    75,411.60/113,117.29 = 19,251.71/x
  3. Step 3: Cross multiply
    75,411.60x = 113,117.29 × 19,251.71
  4. Step 4: Simplify right side
    75,411.60x = 2,177,701,181.83
  5. Step 5: Solve for x
    x = 2,177,701,181.83/75,411.60
  6. Step 6: Final answer
    x = 28,877.54

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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.