Home / 42,895.90-64,272.70-30,353.74

Finding the Fourth Proportional to 42,895.90, 64,272.70 and 30,353.74

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Solution

The fourth proportional to 42,895.90, 64,272.70 and 30,353.74 is: 45,480.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,895.90 : 64,272.70 = 30,353.74 : x
  2. Step 2: Convert to fraction form
    42,895.90/64,272.70 = 30,353.74/x
  3. Step 3: Cross multiply
    42,895.90x = 64,272.70 × 30,353.74
  4. Step 4: Simplify right side
    42,895.90x = 1,950,916,824.90
  5. Step 5: Solve for x
    x = 1,950,916,824.90/42,895.90
  6. Step 6: Final answer
    x = 45,480.26

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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.