Home / 115,277.85-172,902.20-36,400.05

Finding the Fourth Proportional to 115,277.85, 172,902.20 and 36,400.05

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Solution

The fourth proportional to 115,277.85, 172,902.20 and 36,400.05 is: 54,595.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,277.85 : 172,902.20 = 36,400.05 : x
  2. Step 2: Convert to fraction form
    115,277.85/172,902.20 = 36,400.05/x
  3. Step 3: Cross multiply
    115,277.85x = 172,902.20 × 36,400.05
  4. Step 4: Simplify right side
    115,277.85x = 6,293,648,543.11
  5. Step 5: Solve for x
    x = 6,293,648,543.11/115,277.85
  6. Step 6: Final answer
    x = 54,595.47

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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.