Home / 115,037.47-172,410.81-51,790.24

Finding the Fourth Proportional to 115,037.47, 172,410.81 and 51,790.24

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Solution

The fourth proportional to 115,037.47, 172,410.81 and 51,790.24 is: 77,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,037.47 : 172,410.81 = 51,790.24 : x
  2. Step 2: Convert to fraction form
    115,037.47/172,410.81 = 51,790.24/x
  3. Step 3: Cross multiply
    115,037.47x = 172,410.81 × 51,790.24
  4. Step 4: Simplify right side
    115,037.47x = 8,929,197,228.49
  5. Step 5: Solve for x
    x = 8,929,197,228.49/115,037.47
  6. Step 6: Final answer
    x = 77,619.90

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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.