Home / 42,765.04-64,129.21-14,687.92

Finding the Fourth Proportional to 42,765.04, 64,129.21 and 14,687.92

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Solution

The fourth proportional to 42,765.04, 64,129.21 and 14,687.92 is: 22,025.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,765.04 : 64,129.21 = 14,687.92 : x
  2. Step 2: Convert to fraction form
    42,765.04/64,129.21 = 14,687.92/x
  3. Step 3: Cross multiply
    42,765.04x = 64,129.21 × 14,687.92
  4. Step 4: Simplify right side
    42,765.04x = 941,924,509.10
  5. Step 5: Solve for x
    x = 941,924,509.10/42,765.04
  6. Step 6: Final answer
    x = 22,025.57

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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.