Home / 78,623.40-117,935.10-52,379.40

Finding the Fourth Proportional to 78,623.40, 117,935.10 and 52,379.40

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Solution

The fourth proportional to 78,623.40, 117,935.10 and 52,379.40 is: 78,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,623.40 : 117,935.10 = 52,379.40 : x
  2. Step 2: Convert to fraction form
    78,623.40/117,935.10 = 52,379.40/x
  3. Step 3: Cross multiply
    78,623.40x = 117,935.10 × 52,379.40
  4. Step 4: Simplify right side
    78,623.40x = 6,177,369,776.94
  5. Step 5: Solve for x
    x = 6,177,369,776.94/78,623.40
  6. Step 6: Final answer
    x = 78,569.10

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Similar ratio
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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.