Home / 74,660.76-103,014.18-42,388.38

Finding the Fourth Proportional to 74,660.76, 103,014.18 and 42,388.38

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Solution

The fourth proportional to 74,660.76, 103,014.18 and 42,388.38 is: 58,485.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,660.76 : 103,014.18 = 42,388.38 : x
  2. Step 2: Convert to fraction form
    74,660.76/103,014.18 = 42,388.38/x
  3. Step 3: Cross multiply
    74,660.76x = 103,014.18 × 42,388.38
  4. Step 4: Simplify right side
    74,660.76x = 4,366,604,207.23
  5. Step 5: Solve for x
    x = 4,366,604,207.23/74,660.76
  6. Step 6: Final answer
    x = 58,485.93

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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.