Home / 85,004.64-117,262.08-54,781.92

Finding the Fourth Proportional to 85,004.64, 117,262.08 and 54,781.92

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Solution

The fourth proportional to 85,004.64, 117,262.08 and 54,781.92 is: 75,570.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,004.64 : 117,262.08 = 54,781.92 : x
  2. Step 2: Convert to fraction form
    85,004.64/117,262.08 = 54,781.92/x
  3. Step 3: Cross multiply
    85,004.64x = 117,262.08 × 54,781.92
  4. Step 4: Simplify right side
    85,004.64x = 6,423,841,885.59
  5. Step 5: Solve for x
    x = 6,423,841,885.59/85,004.64
  6. Step 6: Final answer
    x = 75,570.49

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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.