Home / 42,895.88-64,272.68-30,353.76

Finding the Fourth Proportional to 42,895.88, 64,272.68 and 30,353.76

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Solution

The fourth proportional to 42,895.88, 64,272.68 and 30,353.76 is: 45,480.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,895.88 : 64,272.68 = 30,353.76 : x
  2. Step 2: Convert to fraction form
    42,895.88/64,272.68 = 30,353.76/x
  3. Step 3: Cross multiply
    42,895.88x = 64,272.68 × 30,353.76
  4. Step 4: Simplify right side
    42,895.88x = 1,950,917,503.28
  5. Step 5: Solve for x
    x = 1,950,917,503.28/42,895.88
  6. Step 6: Final answer
    x = 45,480.30

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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.