Home / 74,370.05-102,632.96-42,549.20

Finding the Fourth Proportional to 74,370.05, 102,632.96 and 42,549.20

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Solution

The fourth proportional to 74,370.05, 102,632.96 and 42,549.20 is: 58,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,370.05 : 102,632.96 = 42,549.20 : x
  2. Step 2: Convert to fraction form
    74,370.05/102,632.96 = 42,549.20/x
  3. Step 3: Cross multiply
    74,370.05x = 102,632.96 × 42,549.20
  4. Step 4: Simplify right side
    74,370.05x = 4,366,949,615.72
  5. Step 5: Solve for x
    x = 4,366,949,615.72/74,370.05
  6. Step 6: Final answer
    x = 58,719.20

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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.