Home / 55,478.41-76,398.94-48,207.45

Finding the Fourth Proportional to 55,478.41, 76,398.94 and 48,207.45

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Solution

The fourth proportional to 55,478.41, 76,398.94 and 48,207.45 is: 66,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,478.41 : 76,398.94 = 48,207.45 : x
  2. Step 2: Convert to fraction form
    55,478.41/76,398.94 = 48,207.45/x
  3. Step 3: Cross multiply
    55,478.41x = 76,398.94 × 48,207.45
  4. Step 4: Simplify right side
    55,478.41x = 3,682,998,080.10
  5. Step 5: Solve for x
    x = 3,682,998,080.10/55,478.41
  6. Step 6: Final answer
    x = 66,386.15

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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.