Home / 55,519,400.28-76,619,167.10-30,739,587.68

Finding the Fourth Proportional to 55,519,400.28, 76,619,167.10 and 30,739,587.68

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Solution

The fourth proportional to 55,519,400.28, 76,619,167.10 and 30,739,587.68 is: 42,421,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,519,400.28 : 76,619,167.10 = 30,739,587.68 : x
  2. Step 2: Convert to fraction form
    55,519,400.28/76,619,167.10 = 30,739,587.68/x
  3. Step 3: Cross multiply
    55,519,400.28x = 76,619,167.10 × 30,739,587.68
  4. Step 4: Simplify right side
    55,519,400.28x = 2,355,241,605,039,021
  5. Step 5: Solve for x
    x = 2,355,241,605,039,021/55,519,400.28
  6. Step 6: Final answer
    x = 42,421,956.89

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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.