Home / 75,307.10-113,005.45-28,564.70

Finding the Fourth Proportional to 75,307.10, 113,005.45 and 28,564.70

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Solution

The fourth proportional to 75,307.10, 113,005.45 and 28,564.70 is: 42,864.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,307.10 : 113,005.45 = 28,564.70 : x
  2. Step 2: Convert to fraction form
    75,307.10/113,005.45 = 28,564.70/x
  3. Step 3: Cross multiply
    75,307.10x = 113,005.45 × 28,564.70
  4. Step 4: Simplify right side
    75,307.10x = 3,227,966,777.62
  5. Step 5: Solve for x
    x = 3,227,966,777.62/75,307.10
  6. Step 6: Final answer
    x = 42,864.04

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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.