Home / 48,312.64-72,400.38-20,202.40

Finding the Fourth Proportional to 48,312.64, 72,400.38 and 20,202.40

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Solution

The fourth proportional to 48,312.64, 72,400.38 and 20,202.40 is: 30,274.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,312.64 : 72,400.38 = 20,202.40 : x
  2. Step 2: Convert to fraction form
    48,312.64/72,400.38 = 20,202.40/x
  3. Step 3: Cross multiply
    48,312.64x = 72,400.38 × 20,202.40
  4. Step 4: Simplify right side
    48,312.64x = 1,462,661,436.91
  5. Step 5: Solve for x
    x = 1,462,661,436.91/48,312.64
  6. Step 6: Final answer
    x = 30,274.92

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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.