Home / 74,389.34-102,632.31-42,119.55

Finding the Fourth Proportional to 74,389.34, 102,632.31 and 42,119.55

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Solution

The fourth proportional to 74,389.34, 102,632.31 and 42,119.55 is: 58,110.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,389.34 : 102,632.31 = 42,119.55 : x
  2. Step 2: Convert to fraction form
    74,389.34/102,632.31 = 42,119.55/x
  3. Step 3: Cross multiply
    74,389.34x = 102,632.31 × 42,119.55
  4. Step 4: Simplify right side
    74,389.34x = 4,322,826,712.66
  5. Step 5: Solve for x
    x = 4,322,826,712.66/74,389.34
  6. Step 6: Final answer
    x = 58,110.84

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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.