Home / 67,981.53-101,937.26-30,509.47

Finding the Fourth Proportional to 67,981.53, 101,937.26 and 30,509.47

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Solution

The fourth proportional to 67,981.53, 101,937.26 and 30,509.47 is: 45,748.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,981.53 : 101,937.26 = 30,509.47 : x
  2. Step 2: Convert to fraction form
    67,981.53/101,937.26 = 30,509.47/x
  3. Step 3: Cross multiply
    67,981.53x = 101,937.26 × 30,509.47
  4. Step 4: Simplify right side
    67,981.53x = 3,110,051,775.85
  5. Step 5: Solve for x
    x = 3,110,051,775.85/67,981.53
  6. Step 6: Final answer
    x = 45,748.48

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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.