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Finding the Fourth Proportional to 85,440.94, 117,908.00 and 47,203.12

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Solution

The fourth proportional to 85,440.94, 117,908.00 and 47,203.12 is: 65,140.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,440.94 : 117,908.00 = 47,203.12 : x
  2. Step 2: Convert to fraction form
    85,440.94/117,908.00 = 47,203.12/x
  3. Step 3: Cross multiply
    85,440.94x = 117,908.00 × 47,203.12
  4. Step 4: Simplify right side
    85,440.94x = 5,565,625,561.34
  5. Step 5: Solve for x
    x = 5,565,625,561.34/85,440.94
  6. Step 6: Final answer
    x = 65,140.03

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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.