Home / 109,038.60-163,579.86-38,916.09

Finding the Fourth Proportional to 109,038.60, 163,579.86 and 38,916.09

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Solution

The fourth proportional to 109,038.60, 163,579.86 and 38,916.09 is: 58,381.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,038.60 : 163,579.86 = 38,916.09 : x
  2. Step 2: Convert to fraction form
    109,038.60/163,579.86 = 38,916.09/x
  3. Step 3: Cross multiply
    109,038.60x = 163,579.86 × 38,916.09
  4. Step 4: Simplify right side
    109,038.60x = 6,365,888,553.95
  5. Step 5: Solve for x
    x = 6,365,888,553.95/109,038.60
  6. Step 6: Final answer
    x = 58,381.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.