Home / 115,048.10-172,426.74-51,800.87

Finding the Fourth Proportional to 115,048.10, 172,426.74 and 51,800.87

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Solution

The fourth proportional to 115,048.10, 172,426.74 and 51,800.87 is: 77,635.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,048.10 : 172,426.74 = 51,800.87 : x
  2. Step 2: Convert to fraction form
    115,048.10/172,426.74 = 51,800.87/x
  3. Step 3: Cross multiply
    115,048.10x = 172,426.74 × 51,800.87
  4. Step 4: Simplify right side
    115,048.10x = 8,931,854,281.13
  5. Step 5: Solve for x
    x = 8,931,854,281.13/115,048.10
  6. Step 6: Final answer
    x = 77,635.83

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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.