Home / 73,430.20-110,145.30-38,438.20

Finding the Fourth Proportional to 73,430.20, 110,145.30 and 38,438.20

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Solution

The fourth proportional to 73,430.20, 110,145.30 and 38,438.20 is: 57,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,430.20 : 110,145.30 = 38,438.20 : x
  2. Step 2: Convert to fraction form
    73,430.20/110,145.30 = 38,438.20/x
  3. Step 3: Cross multiply
    73,430.20x = 110,145.30 × 38,438.20
  4. Step 4: Simplify right side
    73,430.20x = 4,233,787,070.46
  5. Step 5: Solve for x
    x = 4,233,787,070.46/73,430.20
  6. Step 6: Final answer
    x = 57,657.30

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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.