Home / 48,043.32-72,072.66-20,345.40

Finding the Fourth Proportional to 48,043.32, 72,072.66 and 20,345.40

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Solution

The fourth proportional to 48,043.32, 72,072.66 and 20,345.40 is: 30,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,043.32 : 72,072.66 = 20,345.40 : x
  2. Step 2: Convert to fraction form
    48,043.32/72,072.66 = 20,345.40/x
  3. Step 3: Cross multiply
    48,043.32x = 72,072.66 × 20,345.40
  4. Step 4: Simplify right side
    48,043.32x = 1,466,347,096.76
  5. Step 5: Solve for x
    x = 1,466,347,096.76/48,043.32
  6. Step 6: Final answer
    x = 30,521.35

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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.