Home / 85,675.49-118,285.77-55,061

Finding the Fourth Proportional to 85,675.49, 118,285.77 and 55,061

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Solution

The fourth proportional to 85,675.49, 118,285.77 and 55,061 is: 76,018.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,675.49 : 118,285.77 = 55,061 : x
  2. Step 2: Convert to fraction form
    85,675.49/118,285.77 = 55,061/x
  3. Step 3: Cross multiply
    85,675.49x = 118,285.77 × 55,061
  4. Step 4: Simplify right side
    85,675.49x = 6,512,932,781.97
  5. Step 5: Solve for x
    x = 6,512,932,781.97/85,675.49
  6. Step 6: Final answer
    x = 76,018.62

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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.