Home / 85,206.16-117,596.10-49,407.40

Finding the Fourth Proportional to 85,206.16, 117,596.10 and 49,407.40

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Solution

The fourth proportional to 85,206.16, 117,596.10 and 49,407.40 is: 68,188.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,206.16 : 117,596.10 = 49,407.40 : x
  2. Step 2: Convert to fraction form
    85,206.16/117,596.10 = 49,407.40/x
  3. Step 3: Cross multiply
    85,206.16x = 117,596.10 × 49,407.40
  4. Step 4: Simplify right side
    85,206.16x = 5,810,117,551.14
  5. Step 5: Solve for x
    x = 5,810,117,551.14/85,206.16
  6. Step 6: Final answer
    x = 68,188.94

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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.