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Finding the Fourth Proportional to 57,991.81, 80,013.47 and 35,340.98

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Solution

The fourth proportional to 57,991.81, 80,013.47 and 35,340.98 is: 48,761.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,991.81 : 80,013.47 = 35,340.98 : x
  2. Step 2: Convert to fraction form
    57,991.81/80,013.47 = 35,340.98/x
  3. Step 3: Cross multiply
    57,991.81x = 80,013.47 × 35,340.98
  4. Step 4: Simplify right side
    57,991.81x = 2,827,754,303.18
  5. Step 5: Solve for x
    x = 2,827,754,303.18/57,991.81
  6. Step 6: Final answer
    x = 48,761.27

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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.