Home / 77,412.32-115,921.52-51,037.04

Finding the Fourth Proportional to 77,412.32, 115,921.52 and 51,037.04

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Solution

The fourth proportional to 77,412.32, 115,921.52 and 51,037.04 is: 76,425.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,412.32 : 115,921.52 = 51,037.04 : x
  2. Step 2: Convert to fraction form
    77,412.32/115,921.52 = 51,037.04/x
  3. Step 3: Cross multiply
    77,412.32x = 115,921.52 × 51,037.04
  4. Step 4: Simplify right side
    77,412.32x = 5,916,291,253.10
  5. Step 5: Solve for x
    x = 5,916,291,253.10/77,412.32
  6. Step 6: Final answer
    x = 76,425.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.