Home / 55,637.48-76,735.04-48,908.80

Finding the Fourth Proportional to 55,637.48, 76,735.04 and 48,908.80

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Solution

The fourth proportional to 55,637.48, 76,735.04 and 48,908.80 is: 67,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,637.48 : 76,735.04 = 48,908.80 : x
  2. Step 2: Convert to fraction form
    55,637.48/76,735.04 = 48,908.80/x
  3. Step 3: Cross multiply
    55,637.48x = 76,735.04 × 48,908.80
  4. Step 4: Simplify right side
    55,637.48x = 3,753,018,724.35
  5. Step 5: Solve for x
    x = 3,753,018,724.35/55,637.48
  6. Step 6: Final answer
    x = 67,454.87

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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.