Home / 77,691.24-116,519.58-30,307.59

Finding the Fourth Proportional to 77,691.24, 116,519.58 and 30,307.59

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Solution

The fourth proportional to 77,691.24, 116,519.58 and 30,307.59 is: 45,454.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,691.24 : 116,519.58 = 30,307.59 : x
  2. Step 2: Convert to fraction form
    77,691.24/116,519.58 = 30,307.59/x
  3. Step 3: Cross multiply
    77,691.24x = 116,519.58 × 30,307.59
  4. Step 4: Simplify right side
    77,691.24x = 3,531,427,657.61
  5. Step 5: Solve for x
    x = 3,531,427,657.61/77,691.24
  6. Step 6: Final answer
    x = 45,454.64

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1.5x scale

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.