Home / 76,655.03-114,973.77-20,499.51

Finding the Fourth Proportional to 76,655.03, 114,973.77 and 20,499.51

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Solution

The fourth proportional to 76,655.03, 114,973.77 and 20,499.51 is: 30,746.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,655.03 : 114,973.77 = 20,499.51 : x
  2. Step 2: Convert to fraction form
    76,655.03/114,973.77 = 20,499.51/x
  3. Step 3: Cross multiply
    76,655.03x = 114,973.77 × 20,499.51
  4. Step 4: Simplify right side
    76,655.03x = 2,356,905,947.85
  5. Step 5: Solve for x
    x = 2,356,905,947.85/76,655.03
  6. Step 6: Final answer
    x = 30,746.92

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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.