Home / 74,176.16-102,367.20-42,355.28

Finding the Fourth Proportional to 74,176.16, 102,367.20 and 42,355.28

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Solution

The fourth proportional to 74,176.16, 102,367.20 and 42,355.28 is: 58,452.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,176.16 : 102,367.20 = 42,355.28 : x
  2. Step 2: Convert to fraction form
    74,176.16/102,367.20 = 42,355.28/x
  3. Step 3: Cross multiply
    74,176.16x = 102,367.20 × 42,355.28
  4. Step 4: Simplify right side
    74,176.16x = 4,335,791,418.82
  5. Step 5: Solve for x
    x = 4,335,791,418.82/74,176.16
  6. Step 6: Final answer
    x = 58,452.63

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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.