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Finding the Fourth Proportional to 61,602.94, 91,958.77 and 54,129.58

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Solution

The fourth proportional to 61,602.94, 91,958.77 and 54,129.58 is: 80,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,602.94 : 91,958.77 = 54,129.58 : x
  2. Step 2: Convert to fraction form
    61,602.94/91,958.77 = 54,129.58/x
  3. Step 3: Cross multiply
    61,602.94x = 91,958.77 × 54,129.58
  4. Step 4: Simplify right side
    61,602.94x = 4,977,689,340.61
  5. Step 5: Solve for x
    x = 4,977,689,340.61/61,602.94
  6. Step 6: Final answer
    x = 80,802.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.