Home / 75,913.11-113,881.95-28,531.89

Finding the Fourth Proportional to 75,913.11, 113,881.95 and 28,531.89

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Solution

The fourth proportional to 75,913.11, 113,881.95 and 28,531.89 is: 42,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,913.11 : 113,881.95 = 28,531.89 : x
  2. Step 2: Convert to fraction form
    75,913.11/113,881.95 = 28,531.89/x
  3. Step 3: Cross multiply
    75,913.11x = 113,881.95 × 28,531.89
  4. Step 4: Simplify right side
    75,913.11x = 3,249,267,270.39
  5. Step 5: Solve for x
    x = 3,249,267,270.39/75,913.11
  6. Step 6: Final answer
    x = 42,802.45

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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.