Home / 78,926.28-108,916.46-43,116.44

Finding the Fourth Proportional to 78,926.28, 108,916.46 and 43,116.44

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Solution

The fourth proportional to 78,926.28, 108,916.46 and 43,116.44 is: 59,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,926.28 : 108,916.46 = 43,116.44 : x
  2. Step 2: Convert to fraction form
    78,926.28/108,916.46 = 43,116.44/x
  3. Step 3: Cross multiply
    78,926.28x = 108,916.46 × 43,116.44
  4. Step 4: Simplify right side
    78,926.28x = 4,696,090,012.60
  5. Step 5: Solve for x
    x = 4,696,090,012.60/78,926.28
  6. Step 6: Final answer
    x = 59,499.70

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1.5x scale

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.