Home / 74,278.14-102,502.42-42,012.19

Finding the Fourth Proportional to 74,278.14, 102,502.42 and 42,012.19

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Solution

The fourth proportional to 74,278.14, 102,502.42 and 42,012.19 is: 57,976.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,278.14 : 102,502.42 = 42,012.19 : x
  2. Step 2: Convert to fraction form
    74,278.14/102,502.42 = 42,012.19/x
  3. Step 3: Cross multiply
    74,278.14x = 102,502.42 × 42,012.19
  4. Step 4: Simplify right side
    74,278.14x = 4,306,351,144.50
  5. Step 5: Solve for x
    x = 4,306,351,144.50/74,278.14
  6. Step 6: Final answer
    x = 57,976.02

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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.