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Finding the Fourth Proportional to 85,898.71, 118,534.83 and 51,887.08

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Solution

The fourth proportional to 85,898.71, 118,534.83 and 51,887.08 is: 71,600.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,898.71 : 118,534.83 = 51,887.08 : x
  2. Step 2: Convert to fraction form
    85,898.71/118,534.83 = 51,887.08/x
  3. Step 3: Cross multiply
    85,898.71x = 118,534.83 × 51,887.08
  4. Step 4: Simplify right side
    85,898.71x = 6,150,426,160.59
  5. Step 5: Solve for x
    x = 6,150,426,160.59/85,898.71
  6. Step 6: Final answer
    x = 71,600.91

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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.