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Finding the Fourth Proportional to 48,439, 72,639.06 and 23,458.60

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Solution

The fourth proportional to 48,439, 72,639.06 and 23,458.60 is: 35,178.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,439 : 72,639.06 = 23,458.60 : x
  2. Step 2: Convert to fraction form
    48,439/72,639.06 = 23,458.60/x
  3. Step 3: Cross multiply
    48,439x = 72,639.06 × 23,458.60
  4. Step 4: Simplify right side
    48,439x = 1,704,010,652.92
  5. Step 5: Solve for x
    x = 1,704,010,652.92/48,439
  6. Step 6: Final answer
    x = 35,178.49

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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.