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Finding the Fourth Proportional to 85,124.66, 117,470.57 and 46,887.78

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Solution

The fourth proportional to 85,124.66, 117,470.57 and 46,887.78 is: 64,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,124.66 : 117,470.57 = 46,887.78 : x
  2. Step 2: Convert to fraction form
    85,124.66/117,470.57 = 46,887.78/x
  3. Step 3: Cross multiply
    85,124.66x = 117,470.57 × 46,887.78
  4. Step 4: Simplify right side
    85,124.66x = 5,507,934,359.85
  5. Step 5: Solve for x
    x = 5,507,934,359.85/85,124.66
  6. Step 6: Final answer
    x = 64,704.34

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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.