Home / 77,565.38-107,037.39-47,401.19

Finding the Fourth Proportional to 77,565.38, 107,037.39 and 47,401.19

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Solution

The fourth proportional to 77,565.38, 107,037.39 and 47,401.19 is: 65,411.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,565.38 : 107,037.39 = 47,401.19 : x
  2. Step 2: Convert to fraction form
    77,565.38/107,037.39 = 47,401.19/x
  3. Step 3: Cross multiply
    77,565.38x = 107,037.39 × 47,401.19
  4. Step 4: Simplify right side
    77,565.38x = 5,073,699,660.49
  5. Step 5: Solve for x
    x = 5,073,699,660.49/77,565.38
  6. Step 6: Final answer
    x = 65,411.91

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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.