Home / 77,499.63-116,259.47-53,439.21

Finding the Fourth Proportional to 77,499.63, 116,259.47 and 53,439.21

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Solution

The fourth proportional to 77,499.63, 116,259.47 and 53,439.21 is: 80,165.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,499.63 : 116,259.47 = 53,439.21 : x
  2. Step 2: Convert to fraction form
    77,499.63/116,259.47 = 53,439.21/x
  3. Step 3: Cross multiply
    77,499.63x = 116,259.47 × 53,439.21
  4. Step 4: Simplify right side
    77,499.63x = 6,212,813,964.62
  5. Step 5: Solve for x
    x = 6,212,813,964.62/77,499.63
  6. Step 6: Final answer
    x = 80,165.73

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1.5x scale

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.