Home / 74,170.50-102,359.64-42,349.38

Finding the Fourth Proportional to 74,170.50, 102,359.64 and 42,349.38

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Solution

The fourth proportional to 74,170.50, 102,359.64 and 42,349.38 is: 58,444.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,170.50 : 102,359.64 = 42,349.38 : x
  2. Step 2: Convert to fraction form
    74,170.50/102,359.64 = 42,349.38/x
  3. Step 3: Cross multiply
    74,170.50x = 102,359.64 × 42,349.38
  4. Step 4: Simplify right side
    74,170.50x = 4,334,867,291.02
  5. Step 5: Solve for x
    x = 4,334,867,291.02/74,170.50
  6. Step 6: Final answer
    x = 58,444.63

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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.