Home / 75,561.12-104,276.16-42,029.28

Finding the Fourth Proportional to 75,561.12, 104,276.16 and 42,029.28

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Solution

The fourth proportional to 75,561.12, 104,276.16 and 42,029.28 is: 58,001.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,561.12 : 104,276.16 = 42,029.28 : x
  2. Step 2: Convert to fraction form
    75,561.12/104,276.16 = 42,029.28/x
  3. Step 3: Cross multiply
    75,561.12x = 104,276.16 × 42,029.28
  4. Step 4: Simplify right side
    75,561.12x = 4,382,651,925.96
  5. Step 5: Solve for x
    x = 4,382,651,925.96/75,561.12
  6. Step 6: Final answer
    x = 58,001.42

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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.