Home / 76,320.08-114,485.59-20,159.63

Finding the Fourth Proportional to 76,320.08, 114,485.59 and 20,159.63

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Solution

The fourth proportional to 76,320.08, 114,485.59 and 20,159.63 is: 30,240.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,320.08 : 114,485.59 = 20,159.63 : x
  2. Step 2: Convert to fraction form
    76,320.08/114,485.59 = 20,159.63/x
  3. Step 3: Cross multiply
    76,320.08x = 114,485.59 × 20,159.63
  4. Step 4: Simplify right side
    76,320.08x = 2,307,987,134.73
  5. Step 5: Solve for x
    x = 2,307,987,134.73/76,320.08
  6. Step 6: Final answer
    x = 30,240.89

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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.