Home / 77,813.10-116,701.20-35,666.87

Finding the Fourth Proportional to 77,813.10, 116,701.20 and 35,666.87

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Solution

The fourth proportional to 77,813.10, 116,701.20 and 35,666.87 is: 53,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,813.10 : 116,701.20 = 35,666.87 : x
  2. Step 2: Convert to fraction form
    77,813.10/116,701.20 = 35,666.87/x
  3. Step 3: Cross multiply
    77,813.10x = 116,701.20 × 35,666.87
  4. Step 4: Simplify right side
    77,813.10x = 4,162,365,945.74
  5. Step 5: Solve for x
    x = 4,162,365,945.74/77,813.10
  6. Step 6: Final answer
    x = 53,491.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.