Home / 74,763.20-103,175.52-42,938.48

Finding the Fourth Proportional to 74,763.20, 103,175.52 and 42,938.48

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Solution

The fourth proportional to 74,763.20, 103,175.52 and 42,938.48 is: 59,256.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,763.20 : 103,175.52 = 42,938.48 : x
  2. Step 2: Convert to fraction form
    74,763.20/103,175.52 = 42,938.48/x
  3. Step 3: Cross multiply
    74,763.20x = 103,175.52 × 42,938.48
  4. Step 4: Simplify right side
    74,763.20x = 4,430,200,002.01
  5. Step 5: Solve for x
    x = 4,430,200,002.01/74,763.20
  6. Step 6: Final answer
    x = 59,256.43

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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.