Home / 75,392.33-112,995.05-42,135.75

Finding the Fourth Proportional to 75,392.33, 112,995.05 and 42,135.75

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Solution

The fourth proportional to 75,392.33, 112,995.05 and 42,135.75 is: 63,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,392.33 : 112,995.05 = 42,135.75 : x
  2. Step 2: Convert to fraction form
    75,392.33/112,995.05 = 42,135.75/x
  3. Step 3: Cross multiply
    75,392.33x = 112,995.05 × 42,135.75
  4. Step 4: Simplify right side
    75,392.33x = 4,761,130,967.36
  5. Step 5: Solve for x
    x = 4,761,130,967.36/75,392.33
  6. Step 6: Final answer
    x = 63,151.40

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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.