Home / 42,124.88-63,193.08-18,750.80

Finding the Fourth Proportional to 42,124.88, 63,193.08 and 18,750.80

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Solution

The fourth proportional to 42,124.88, 63,193.08 and 18,750.80 is: 28,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,124.88 : 63,193.08 = 18,750.80 : x
  2. Step 2: Convert to fraction form
    42,124.88/63,193.08 = 18,750.80/x
  3. Step 3: Cross multiply
    42,124.88x = 63,193.08 × 18,750.80
  4. Step 4: Simplify right side
    42,124.88x = 1,184,920,804.46
  5. Step 5: Solve for x
    x = 1,184,920,804.46/42,124.88
  6. Step 6: Final answer
    x = 28,128.76

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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.