Home / 55,465.60-83,231.34-20,429.84

Finding the Fourth Proportional to 55,465.60, 83,231.34 and 20,429.84

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Solution

The fourth proportional to 55,465.60, 83,231.34 and 20,429.84 is: 30,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,465.60 : 83,231.34 = 20,429.84 : x
  2. Step 2: Convert to fraction form
    55,465.60/83,231.34 = 20,429.84/x
  3. Step 3: Cross multiply
    55,465.60x = 83,231.34 × 20,429.84
  4. Step 4: Simplify right side
    55,465.60x = 1,700,402,959.19
  5. Step 5: Solve for x
    x = 1,700,402,959.19/55,465.60
  6. Step 6: Final answer
    x = 30,656.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.