Home / 75,284.43-112,926.10-19,124.70

Finding the Fourth Proportional to 75,284.43, 112,926.10 and 19,124.70

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Solution

The fourth proportional to 75,284.43, 112,926.10 and 19,124.70 is: 28,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,284.43 : 112,926.10 = 19,124.70 : x
  2. Step 2: Convert to fraction form
    75,284.43/112,926.10 = 19,124.70/x
  3. Step 3: Cross multiply
    75,284.43x = 112,926.10 × 19,124.70
  4. Step 4: Simplify right side
    75,284.43x = 2,159,677,784.67
  5. Step 5: Solve for x
    x = 2,159,677,784.67/75,284.43
  6. Step 6: Final answer
    x = 28,686.91

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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.