Home / 75,485.25-113,225.28-19,325.86

Finding the Fourth Proportional to 75,485.25, 113,225.28 and 19,325.86

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Solution

The fourth proportional to 75,485.25, 113,225.28 and 19,325.86 is: 28,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,485.25 : 113,225.28 = 19,325.86 : x
  2. Step 2: Convert to fraction form
    75,485.25/113,225.28 = 19,325.86/x
  3. Step 3: Cross multiply
    75,485.25x = 113,225.28 × 19,325.86
  4. Step 4: Simplify right side
    75,485.25x = 2,188,175,909.74
  5. Step 5: Solve for x
    x = 2,188,175,909.74/75,485.25
  6. Step 6: Final answer
    x = 28,988.13

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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.