Home / 71,156.88-98,208-42,868.08

Finding the Fourth Proportional to 71,156.88, 98,208 and 42,868.08

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Solution

The fourth proportional to 71,156.88, 98,208 and 42,868.08 is: 59,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,156.88 : 98,208 = 42,868.08 : x
  2. Step 2: Convert to fraction form
    71,156.88/98,208 = 42,868.08/x
  3. Step 3: Cross multiply
    71,156.88x = 98,208 × 42,868.08
  4. Step 4: Simplify right side
    71,156.88x = 4,209,988,400.64
  5. Step 5: Solve for x
    x = 4,209,988,400.64/71,156.88
  6. Step 6: Final answer
    x = 59,164.88

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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.