Home / 55,903.68-77,147.28-30,410.04

Finding the Fourth Proportional to 55,903.68, 77,147.28 and 30,410.04

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Solution

The fourth proportional to 55,903.68, 77,147.28 and 30,410.04 is: 41,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,903.68 : 77,147.28 = 30,410.04 : x
  2. Step 2: Convert to fraction form
    55,903.68/77,147.28 = 30,410.04/x
  3. Step 3: Cross multiply
    55,903.68x = 77,147.28 × 30,410.04
  4. Step 4: Simplify right side
    55,903.68x = 2,346,051,870.69
  5. Step 5: Solve for x
    x = 2,346,051,870.69/55,903.68
  6. Step 6: Final answer
    x = 41,965.96

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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.