Home / 105,574.14-145,692.35-57,829.20

Finding the Fourth Proportional to 105,574.14, 145,692.35 and 57,829.20

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Solution

The fourth proportional to 105,574.14, 145,692.35 and 57,829.20 is: 79,804.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,574.14 : 145,692.35 = 57,829.20 : x
  2. Step 2: Convert to fraction form
    105,574.14/145,692.35 = 57,829.20/x
  3. Step 3: Cross multiply
    105,574.14x = 145,692.35 × 57,829.20
  4. Step 4: Simplify right side
    105,574.14x = 8,425,271,757.47
  5. Step 5: Solve for x
    x = 8,425,271,757.47/105,574.14
  6. Step 6: Final answer
    x = 79,804.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.