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Finding the Fourth Proportional to 85,100.57, 117,392.51 and 53,262.71

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Solution

The fourth proportional to 85,100.57, 117,392.51 and 53,262.71 is: 73,473.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,100.57 : 117,392.51 = 53,262.71 : x
  2. Step 2: Convert to fraction form
    85,100.57/117,392.51 = 53,262.71/x
  3. Step 3: Cross multiply
    85,100.57x = 117,392.51 × 53,262.71
  4. Step 4: Simplify right side
    85,100.57x = 6,252,642,629.34
  5. Step 5: Solve for x
    x = 6,252,642,629.34/85,100.57
  6. Step 6: Final answer
    x = 73,473.57

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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.