Home / 48,003.40-72,005.10-42,171.40

Finding the Fourth Proportional to 48,003.40, 72,005.10 and 42,171.40

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Solution

The fourth proportional to 48,003.40, 72,005.10 and 42,171.40 is: 63,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,003.40 : 72,005.10 = 42,171.40 : x
  2. Step 2: Convert to fraction form
    48,003.40/72,005.10 = 42,171.40/x
  3. Step 3: Cross multiply
    48,003.40x = 72,005.10 × 42,171.40
  4. Step 4: Simplify right side
    48,003.40x = 3,036,555,874.14
  5. Step 5: Solve for x
    x = 3,036,555,874.14/48,003.40
  6. Step 6: Final answer
    x = 63,257.10

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1.5x scale

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.