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Finding the Fourth Proportional to 57,641.04, 79,557 and 36,406.80

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Solution

The fourth proportional to 57,641.04, 79,557 and 36,406.80 is: 50,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,641.04 : 79,557 = 36,406.80 : x
  2. Step 2: Convert to fraction form
    57,641.04/79,557 = 36,406.80/x
  3. Step 3: Cross multiply
    57,641.04x = 79,557 × 36,406.80
  4. Step 4: Simplify right side
    57,641.04x = 2,896,415,787.60
  5. Step 5: Solve for x
    x = 2,896,415,787.60/57,641.04
  6. Step 6: Final answer
    x = 50,249.19

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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.