Home / 85,117.13-117,462.45-47,392.19

Finding the Fourth Proportional to 85,117.13, 117,462.45 and 47,392.19

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Solution

The fourth proportional to 85,117.13, 117,462.45 and 47,392.19 is: 65,401.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,117.13 : 117,462.45 = 47,392.19 : x
  2. Step 2: Convert to fraction form
    85,117.13/117,462.45 = 47,392.19/x
  3. Step 3: Cross multiply
    85,117.13x = 117,462.45 × 47,392.19
  4. Step 4: Simplify right side
    85,117.13x = 5,566,802,160.95
  5. Step 5: Solve for x
    x = 5,566,802,160.95/85,117.13
  6. Step 6: Final answer
    x = 65,401.67

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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.