Home / 78,384.52-117,590.22-25,808.92

Finding the Fourth Proportional to 78,384.52, 117,590.22 and 25,808.92

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Solution

The fourth proportional to 78,384.52, 117,590.22 and 25,808.92 is: 38,717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384.52 : 117,590.22 = 25,808.92 : x
  2. Step 2: Convert to fraction form
    78,384.52/117,590.22 = 25,808.92/x
  3. Step 3: Cross multiply
    78,384.52x = 117,590.22 × 25,808.92
  4. Step 4: Simplify right side
    78,384.52x = 3,034,876,580.76
  5. Step 5: Solve for x
    x = 3,034,876,580.76/78,384.52
  6. Step 6: Final answer
    x = 38,717.81

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1.5x scale

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.