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Finding the Fourth Proportional to 84,014.78, 115,937.03 and 45,774.64

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Solution

The fourth proportional to 84,014.78, 115,937.03 and 45,774.64 is: 63,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,014.78 : 115,937.03 = 45,774.64 : x
  2. Step 2: Convert to fraction form
    84,014.78/115,937.03 = 45,774.64/x
  3. Step 3: Cross multiply
    84,014.78x = 115,937.03 × 45,774.64
  4. Step 4: Simplify right side
    84,014.78x = 5,306,975,002.36
  5. Step 5: Solve for x
    x = 5,306,975,002.36/84,014.78
  6. Step 6: Final answer
    x = 63,167.16

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1.5x scale

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.