Home / 68,718.15-103,545.27-56,511.54

Finding the Fourth Proportional to 68,718.15, 103,545.27 and 56,511.54

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Solution

The fourth proportional to 68,718.15, 103,545.27 and 56,511.54 is: 85,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,718.15 : 103,545.27 = 56,511.54 : x
  2. Step 2: Convert to fraction form
    68,718.15/103,545.27 = 56,511.54/x
  3. Step 3: Cross multiply
    68,718.15x = 103,545.27 × 56,511.54
  4. Step 4: Simplify right side
    68,718.15x = 5,851,502,667.42
  5. Step 5: Solve for x
    x = 5,851,502,667.42/68,718.15
  6. Step 6: Final answer
    x = 85,152.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.