Home / 75,142.41-112,547.48-51,393.66

Finding the Fourth Proportional to 75,142.41, 112,547.48 and 51,393.66

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Solution

The fourth proportional to 75,142.41, 112,547.48 and 51,393.66 is: 76,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,142.41 : 112,547.48 = 51,393.66 : x
  2. Step 2: Convert to fraction form
    75,142.41/112,547.48 = 51,393.66/x
  3. Step 3: Cross multiply
    75,142.41x = 112,547.48 × 51,393.66
  4. Step 4: Simplify right side
    75,142.41x = 5,784,226,664.01
  5. Step 5: Solve for x
    x = 5,784,226,664.01/75,142.41
  6. Step 6: Final answer
    x = 76,976.86

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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.