Home / 109,038.72-163,580.04-38,916.20

Finding the Fourth Proportional to 109,038.72, 163,580.04 and 38,916.20

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Solution

The fourth proportional to 109,038.72, 163,580.04 and 38,916.20 is: 58,382.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,038.72 : 163,580.04 = 38,916.20 : x
  2. Step 2: Convert to fraction form
    109,038.72/163,580.04 = 38,916.20/x
  3. Step 3: Cross multiply
    109,038.72x = 163,580.04 × 38,916.20
  4. Step 4: Simplify right side
    109,038.72x = 6,365,913,552.65
  5. Step 5: Solve for x
    x = 6,365,913,552.65/109,038.72
  6. Step 6: Final answer
    x = 58,382.14

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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.