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Finding the Fourth Proportional to 85,373.88, 117,827.10 and 47,655.96

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Solution

The fourth proportional to 85,373.88, 117,827.10 and 47,655.96 is: 65,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,373.88 : 117,827.10 = 47,655.96 : x
  2. Step 2: Convert to fraction form
    85,373.88/117,827.10 = 47,655.96/x
  3. Step 3: Cross multiply
    85,373.88x = 117,827.10 × 47,655.96
  4. Step 4: Simplify right side
    85,373.88x = 5,615,163,564.52
  5. Step 5: Solve for x
    x = 5,615,163,564.52/85,373.88
  6. Step 6: Final answer
    x = 65,771.45

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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.