Home / 48,390.48-72,438.30-38,942.64

Finding the Fourth Proportional to 48,390.48, 72,438.30 and 38,942.64

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Solution

The fourth proportional to 48,390.48, 72,438.30 and 38,942.64 is: 58,295.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,390.48 : 72,438.30 = 38,942.64 : x
  2. Step 2: Convert to fraction form
    48,390.48/72,438.30 = 38,942.64/x
  3. Step 3: Cross multiply
    48,390.48x = 72,438.30 × 38,942.64
  4. Step 4: Simplify right side
    48,390.48x = 2,820,938,639.11
  5. Step 5: Solve for x
    x = 2,820,938,639.11/48,390.48
  6. Step 6: Final answer
    x = 58,295.32

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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.