Home / 42,119.18-63,160.35-15,805.46

Finding the Fourth Proportional to 42,119.18, 63,160.35 and 15,805.46

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Solution

The fourth proportional to 42,119.18, 63,160.35 and 15,805.46 is: 23,701.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,119.18 : 63,160.35 = 15,805.46 : x
  2. Step 2: Convert to fraction form
    42,119.18/63,160.35 = 15,805.46/x
  3. Step 3: Cross multiply
    42,119.18x = 63,160.35 × 15,805.46
  4. Step 4: Simplify right side
    42,119.18x = 998,278,385.51
  5. Step 5: Solve for x
    x = 998,278,385.51/42,119.18
  6. Step 6: Final answer
    x = 23,701.28

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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.