Home / 78,324.86-108,088.44-42,514.89

Finding the Fourth Proportional to 78,324.86, 108,088.44 and 42,514.89

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Solution

The fourth proportional to 78,324.86, 108,088.44 and 42,514.89 is: 58,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,324.86 : 108,088.44 = 42,514.89 : x
  2. Step 2: Convert to fraction form
    78,324.86/108,088.44 = 42,514.89/x
  3. Step 3: Cross multiply
    78,324.86x = 108,088.44 × 42,514.89
  4. Step 4: Simplify right side
    78,324.86x = 4,595,368,136.87
  5. Step 5: Solve for x
    x = 4,595,368,136.87/78,324.86
  6. Step 6: Final answer
    x = 58,670.62

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1.5x scale

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.