Home / 42,692.55-64,048.35-13,113.39

Finding the Fourth Proportional to 42,692.55, 64,048.35 and 13,113.39

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Solution

The fourth proportional to 42,692.55, 64,048.35 and 13,113.39 is: 19,673.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,692.55 : 64,048.35 = 13,113.39 : x
  2. Step 2: Convert to fraction form
    42,692.55/64,048.35 = 13,113.39/x
  3. Step 3: Cross multiply
    42,692.55x = 64,048.35 × 13,113.39
  4. Step 4: Simplify right side
    42,692.55x = 839,890,992.41
  5. Step 5: Solve for x
    x = 839,890,992.41/42,692.55
  6. Step 6: Final answer
    x = 19,673.01

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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.