Home / 48,128.64-72,143.28-23,130.96

Finding the Fourth Proportional to 48,128.64, 72,143.28 and 23,130.96

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Solution

The fourth proportional to 48,128.64, 72,143.28 and 23,130.96 is: 34,672.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,128.64 : 72,143.28 = 23,130.96 : x
  2. Step 2: Convert to fraction form
    48,128.64/72,143.28 = 23,130.96/x
  3. Step 3: Cross multiply
    48,128.64x = 72,143.28 × 23,130.96
  4. Step 4: Simplify right side
    48,128.64x = 1,668,743,323.95
  5. Step 5: Solve for x
    x = 1,668,743,323.95/48,128.64
  6. Step 6: Final answer
    x = 34,672.56

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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.