Home / 55,478.07-76,555.60-31,600.08

Finding the Fourth Proportional to 55,478.07, 76,555.60 and 31,600.08

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Solution

The fourth proportional to 55,478.07, 76,555.60 and 31,600.08 is: 43,605.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,478.07 : 76,555.60 = 31,600.08 : x
  2. Step 2: Convert to fraction form
    55,478.07/76,555.60 = 31,600.08/x
  3. Step 3: Cross multiply
    55,478.07x = 76,555.60 × 31,600.08
  4. Step 4: Simplify right side
    55,478.07x = 2,419,163,005.45
  5. Step 5: Solve for x
    x = 2,419,163,005.45/55,478.07
  6. Step 6: Final answer
    x = 43,605.75

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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.