Home / 55,003.60-75,904.36-30,804.79

Finding the Fourth Proportional to 55,003.60, 75,904.36 and 30,804.79

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Solution

The fourth proportional to 55,003.60, 75,904.36 and 30,804.79 is: 42,510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,003.60 : 75,904.36 = 30,804.79 : x
  2. Step 2: Convert to fraction form
    55,003.60/75,904.36 = 30,804.79/x
  3. Step 3: Cross multiply
    55,003.60x = 75,904.36 × 30,804.79
  4. Step 4: Simplify right side
    55,003.60x = 2,338,217,528.87
  5. Step 5: Solve for x
    x = 2,338,217,528.87/55,003.60
  6. Step 6: Final answer
    x = 42,510.26

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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.