Home / 78,931.54-108,926.04-43,122.52

Finding the Fourth Proportional to 78,931.54, 108,926.04 and 43,122.52

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Solution

The fourth proportional to 78,931.54, 108,926.04 and 43,122.52 is: 59,509.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,931.54 : 108,926.04 = 43,122.52 : x
  2. Step 2: Convert to fraction form
    78,931.54/108,926.04 = 43,122.52/x
  3. Step 3: Cross multiply
    78,931.54x = 108,926.04 × 43,122.52
  4. Step 4: Simplify right side
    78,931.54x = 4,697,165,338.42
  5. Step 5: Solve for x
    x = 4,697,165,338.42/78,931.54
  6. Step 6: Final answer
    x = 59,509.36

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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.