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Finding the Fourth Proportional to 55,999.68, 77,275.89 and 30,849.18

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Solution

The fourth proportional to 55,999.68, 77,275.89 and 30,849.18 is: 42,569.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,999.68 : 77,275.89 = 30,849.18 : x
  2. Step 2: Convert to fraction form
    55,999.68/77,275.89 = 30,849.18/x
  3. Step 3: Cross multiply
    55,999.68x = 77,275.89 × 30,849.18
  4. Step 4: Simplify right side
    55,999.68x = 2,383,897,840.27
  5. Step 5: Solve for x
    x = 2,383,897,840.27/55,999.68
  6. Step 6: Final answer
    x = 42,569.85

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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.