Home / 78,895.40-108,863.62-47,064.36

Finding the Fourth Proportional to 78,895.40, 108,863.62 and 47,064.36

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Solution

The fourth proportional to 78,895.40, 108,863.62 and 47,064.36 is: 64,941.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,895.40 : 108,863.62 = 47,064.36 : x
  2. Step 2: Convert to fraction form
    78,895.40/108,863.62 = 47,064.36/x
  3. Step 3: Cross multiply
    78,895.40x = 108,863.62 × 47,064.36
  4. Step 4: Simplify right side
    78,895.40x = 5,123,596,602.58
  5. Step 5: Solve for x
    x = 5,123,596,602.58/78,895.40
  6. Step 6: Final answer
    x = 64,941.64

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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.