Home / 42,891.89-64,266.70-30,349.75

Finding the Fourth Proportional to 42,891.89, 64,266.70 and 30,349.75

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Solution

The fourth proportional to 42,891.89, 64,266.70 and 30,349.75 is: 45,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,891.89 : 64,266.70 = 30,349.75 : x
  2. Step 2: Convert to fraction form
    42,891.89/64,266.70 = 30,349.75/x
  3. Step 3: Cross multiply
    42,891.89x = 64,266.70 × 30,349.75
  4. Step 4: Simplify right side
    42,891.89x = 1,950,478,278.33
  5. Step 5: Solve for x
    x = 1,950,478,278.33/42,891.89
  6. Step 6: Final answer
    x = 45,474.29

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1.5x scale

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.