Home / 78,932.07-108,926.64-43,122.67

Finding the Fourth Proportional to 78,932.07, 108,926.64 and 43,122.67

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Solution

The fourth proportional to 78,932.07, 108,926.64 and 43,122.67 is: 59,509.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,932.07 : 108,926.64 = 43,122.67 : x
  2. Step 2: Convert to fraction form
    78,932.07/108,926.64 = 43,122.67/x
  3. Step 3: Cross multiply
    78,932.07x = 108,926.64 × 43,122.67
  4. Step 4: Simplify right side
    78,932.07x = 4,697,207,278.61
  5. Step 5: Solve for x
    x = 4,697,207,278.61/78,932.07
  6. Step 6: Final answer
    x = 59,509.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.