Home / 85,159.72-117,521.55-47,433.97

Finding the Fourth Proportional to 85,159.72, 117,521.55 and 47,433.97

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Solution

The fourth proportional to 85,159.72, 117,521.55 and 47,433.97 is: 65,459.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,159.72 : 117,521.55 = 47,433.97 : x
  2. Step 2: Convert to fraction form
    85,159.72/117,521.55 = 47,433.97/x
  3. Step 3: Cross multiply
    85,159.72x = 117,521.55 × 47,433.97
  4. Step 4: Simplify right side
    85,159.72x = 5,574,513,677.05
  5. Step 5: Solve for x
    x = 5,574,513,677.05/85,159.72
  6. Step 6: Final answer
    x = 65,459.51

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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.