Home / 89,985.11-134,963.79-30,014.63

Finding the Fourth Proportional to 89,985.11, 134,963.79 and 30,014.63

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Solution

The fourth proportional to 89,985.11, 134,963.79 and 30,014.63 is: 45,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,985.11 : 134,963.79 = 30,014.63 : x
  2. Step 2: Convert to fraction form
    89,985.11/134,963.79 = 30,014.63/x
  3. Step 3: Cross multiply
    89,985.11x = 134,963.79 × 30,014.63
  4. Step 4: Simplify right side
    89,985.11x = 4,050,888,388.95
  5. Step 5: Solve for x
    x = 4,050,888,388.95/89,985.11
  6. Step 6: Final answer
    x = 45,017.32

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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.