Home / 57,711.50-79,641.87-40,973.66

Finding the Fourth Proportional to 57,711.50, 79,641.87 and 40,973.66

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Solution

The fourth proportional to 57,711.50, 79,641.87 and 40,973.66 is: 56,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.50 : 79,641.87 = 40,973.66 : x
  2. Step 2: Convert to fraction form
    57,711.50/79,641.87 = 40,973.66/x
  3. Step 3: Cross multiply
    57,711.50x = 79,641.87 × 40,973.66
  4. Step 4: Simplify right side
    57,711.50x = 3,263,218,903.14
  5. Step 5: Solve for x
    x = 3,263,218,903.14/57,711.50
  6. Step 6: Final answer
    x = 56,543.65

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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.