Home / 53,002.72-73,145.10-29,130

Finding the Fourth Proportional to 53,002.72, 73,145.10 and 29,130

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Solution

The fourth proportional to 53,002.72, 73,145.10 and 29,130 is: 40,200.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,002.72 : 73,145.10 = 29,130 : x
  2. Step 2: Convert to fraction form
    53,002.72/73,145.10 = 29,130/x
  3. Step 3: Cross multiply
    53,002.72x = 73,145.10 × 29,130
  4. Step 4: Simplify right side
    53,002.72x = 2,130,716,763.00
  5. Step 5: Solve for x
    x = 2,130,716,763.00/53,002.72
  6. Step 6: Final answer
    x = 40,200.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.