Home / 42,041.87-63,040.65-12,455.36

Finding the Fourth Proportional to 42,041.87, 63,040.65 and 12,455.36

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Solution

The fourth proportional to 42,041.87, 63,040.65 and 12,455.36 is: 18,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,041.87 : 63,040.65 = 12,455.36 : x
  2. Step 2: Convert to fraction form
    42,041.87/63,040.65 = 12,455.36/x
  3. Step 3: Cross multiply
    42,041.87x = 63,040.65 × 12,455.36
  4. Step 4: Simplify right side
    42,041.87x = 785,193,675.18
  5. Step 5: Solve for x
    x = 785,193,675.18/42,041.87
  6. Step 6: Final answer
    x = 18,676.47

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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.