Home / 42,844.20-64,266.30-30,378.30

Finding the Fourth Proportional to 42,844.20, 64,266.30 and 30,378.30

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Solution

The fourth proportional to 42,844.20, 64,266.30 and 30,378.30 is: 45,567.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,844.20 : 64,266.30 = 30,378.30 : x
  2. Step 2: Convert to fraction form
    42,844.20/64,266.30 = 30,378.30/x
  3. Step 3: Cross multiply
    42,844.20x = 64,266.30 × 30,378.30
  4. Step 4: Simplify right side
    42,844.20x = 1,952,300,941.29
  5. Step 5: Solve for x
    x = 1,952,300,941.29/42,844.20
  6. Step 6: Final answer
    x = 45,567.45

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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.