Home / 48,411.30-66,778.62-30,475.20

Finding the Fourth Proportional to 48,411.30, 66,778.62 and 30,475.20

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Solution

The fourth proportional to 48,411.30, 66,778.62 and 30,475.20 is: 42,037.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,411.30 : 66,778.62 = 30,475.20 : x
  2. Step 2: Convert to fraction form
    48,411.30/66,778.62 = 30,475.20/x
  3. Step 3: Cross multiply
    48,411.30x = 66,778.62 × 30,475.20
  4. Step 4: Simplify right side
    48,411.30x = 2,035,091,800.22
  5. Step 5: Solve for x
    x = 2,035,091,800.22/48,411.30
  6. Step 6: Final answer
    x = 42,037.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.