Home / 75,065.30-112,594.02-18,905.38

Finding the Fourth Proportional to 75,065.30, 112,594.02 and 18,905.38

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Solution

The fourth proportional to 75,065.30, 112,594.02 and 18,905.38 is: 28,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,065.30 : 112,594.02 = 18,905.38 : x
  2. Step 2: Convert to fraction form
    75,065.30/112,594.02 = 18,905.38/x
  3. Step 3: Cross multiply
    75,065.30x = 112,594.02 × 18,905.38
  4. Step 4: Simplify right side
    75,065.30x = 2,128,632,733.83
  5. Step 5: Solve for x
    x = 2,128,632,733.83/75,065.30
  6. Step 6: Final answer
    x = 28,357.08

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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.