Home / 78,312.44-108,071.24-42,502.46

Finding the Fourth Proportional to 78,312.44, 108,071.24 and 42,502.46

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Solution

The fourth proportional to 78,312.44, 108,071.24 and 42,502.46 is: 58,653.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312.44 : 108,071.24 = 42,502.46 : x
  2. Step 2: Convert to fraction form
    78,312.44/108,071.24 = 42,502.46/x
  3. Step 3: Cross multiply
    78,312.44x = 108,071.24 × 42,502.46
  4. Step 4: Simplify right side
    78,312.44x = 4,593,293,555.25
  5. Step 5: Solve for x
    x = 4,593,293,555.25/78,312.44
  6. Step 6: Final answer
    x = 58,653.43

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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.