Home / 77,563.38-107,034.63-47,399.19

Finding the Fourth Proportional to 77,563.38, 107,034.63 and 47,399.19

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Solution

The fourth proportional to 77,563.38, 107,034.63 and 47,399.19 is: 65,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,563.38 : 107,034.63 = 47,399.19 : x
  2. Step 2: Convert to fraction form
    77,563.38/107,034.63 = 47,399.19/x
  3. Step 3: Cross multiply
    77,563.38x = 107,034.63 × 47,399.19
  4. Step 4: Simplify right side
    77,563.38x = 5,073,354,763.95
  5. Step 5: Solve for x
    x = 5,073,354,763.95/77,563.38
  6. Step 6: Final answer
    x = 65,409.15

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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.