Home / 75,179.04-103,744.36-42,915.32

Finding the Fourth Proportional to 75,179.04, 103,744.36 and 42,915.32

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Solution

The fourth proportional to 75,179.04, 103,744.36 and 42,915.32 is: 59,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,179.04 : 103,744.36 = 42,915.32 : x
  2. Step 2: Convert to fraction form
    75,179.04/103,744.36 = 42,915.32/x
  3. Step 3: Cross multiply
    75,179.04x = 103,744.36 × 42,915.32
  4. Step 4: Simplify right side
    75,179.04x = 4,452,222,407.60
  5. Step 5: Solve for x
    x = 4,452,222,407.60/75,179.04
  6. Step 6: Final answer
    x = 59,221.59

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1.5x scale

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.