Home / 74,168.10-102,359.28-42,341.76

Finding the Fourth Proportional to 74,168.10, 102,359.28 and 42,341.76

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Solution

The fourth proportional to 74,168.10, 102,359.28 and 42,341.76 is: 58,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,168.10 : 102,359.28 = 42,341.76 : x
  2. Step 2: Convert to fraction form
    74,168.10/102,359.28 = 42,341.76/x
  3. Step 3: Cross multiply
    74,168.10x = 102,359.28 × 42,341.76
  4. Step 4: Simplify right side
    74,168.10x = 4,334,072,067.53
  5. Step 5: Solve for x
    x = 4,334,072,067.53/74,168.10
  6. Step 6: Final answer
    x = 58,435.80

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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.