Home / 56,677.50-77,717.57-55,201.28

Finding the Fourth Proportional to 56,677.50, 77,717.57 and 55,201.28

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Solution

The fourth proportional to 56,677.50, 77,717.57 and 55,201.28 is: 75,693.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,677.50 : 77,717.57 = 55,201.28 : x
  2. Step 2: Convert to fraction form
    56,677.50/77,717.57 = 55,201.28/x
  3. Step 3: Cross multiply
    56,677.50x = 77,717.57 × 55,201.28
  4. Step 4: Simplify right side
    56,677.50x = 4,290,108,677.90
  5. Step 5: Solve for x
    x = 4,290,108,677.90/56,677.50
  6. Step 6: Final answer
    x = 75,693.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.