Home / 76,657.38-114,977.02-20,501.84

Finding the Fourth Proportional to 76,657.38, 114,977.02 and 20,501.84

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Solution

The fourth proportional to 76,657.38, 114,977.02 and 20,501.84 is: 30,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,657.38 : 114,977.02 = 20,501.84 : x
  2. Step 2: Convert to fraction form
    76,657.38/114,977.02 = 20,501.84/x
  3. Step 3: Cross multiply
    76,657.38x = 114,977.02 × 20,501.84
  4. Step 4: Simplify right side
    76,657.38x = 2,357,240,703.90
  5. Step 5: Solve for x
    x = 2,357,240,703.90/76,657.38
  6. Step 6: Final answer
    x = 30,750.34

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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.