Home / 78,312.36-108,073.18-42,502.44

Finding the Fourth Proportional to 78,312.36, 108,073.18 and 42,502.44

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Solution

The fourth proportional to 78,312.36, 108,073.18 and 42,502.44 is: 58,654.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312.36 : 108,073.18 = 42,502.44 : x
  2. Step 2: Convert to fraction form
    78,312.36/108,073.18 = 42,502.44/x
  3. Step 3: Cross multiply
    78,312.36x = 108,073.18 × 42,502.44
  4. Step 4: Simplify right side
    78,312.36x = 4,593,373,848.56
  5. Step 5: Solve for x
    x = 4,593,373,848.56/78,312.36
  6. Step 6: Final answer
    x = 58,654.52

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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.