Home / 52,485.38-78,720.70-15,048.64

Finding the Fourth Proportional to 52,485.38, 78,720.70 and 15,048.64

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Solution

The fourth proportional to 52,485.38, 78,720.70 and 15,048.64 is: 22,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,485.38 : 78,720.70 = 15,048.64 : x
  2. Step 2: Convert to fraction form
    52,485.38/78,720.70 = 15,048.64/x
  3. Step 3: Cross multiply
    52,485.38x = 78,720.70 × 15,048.64
  4. Step 4: Simplify right side
    52,485.38x = 1,184,639,474.85
  5. Step 5: Solve for x
    x = 1,184,639,474.85/52,485.38
  6. Step 6: Final answer
    x = 22,570.85

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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.